To know more on practical concepts of SQL operators, you should join our SQL certification program at JanBask Training and get ready to expand your knowledge base with us. For pattern, you can specify the complete value (for example, Like \"Smith\"), or you can use wildcard characters to find a range of values (for example, ), or you can use wildcard characters to find a range of values (for example, Like \"Sm*\").In an expression, you can use the Like operator to compare a field value to a string expression. These values differ from all other values in a database. The LIKE operator in SQL can be used along SELECT, UPDATE, WHERE, or DELETE statements, etc. Security, risk management & Asset security, Introduction to Ethical Hacking & Networking Basics, Business Analysis & Stakeholders Overview, BPMN, Requirement Elicitation & Management. To reverse the result, you should add not an operator  with the LIKE clause. case-insensitive): Data Mining SQL Tutorial Guide for Beginner, SSRS Sub Reports and deployment process-How to do it, Top 30 Core Java Interview Questions and Answers for Fresher, Experienced Developer   Wildcard characters are used with the SQL LIKE operator.  483.5k, SSIS Interview Questions & Answers for Fresher, Experienced   The LIKE in SQL is used to extract records where a particular pattern is present. The Any operator in SQL returns true when the value matches any value in single column set of values. Returns either 1 (TRUE) or 0 (FALSE) The SQL LIKE operator is only applied on a field of types CHAR or VARCHAR to match a pattern. Using SQL LIKE with the CASE statement. A pattern may involve regular expressions or wildcard characters etc. sql-expression. Read: How To Differentiate SQL Server JOIN, IN And EXISTS Clause? Phone numbers are either defined as domestic or international. In an expression, you can use the Like operator to compare a field value to a string expression. You should focus on sensitivity properties there to compute the final output. How to Add, Remove, Or Set Primary Key   In SQL, we can use a NOT operator with EXISTS, BETWEEN, LIKE, IN, etc. The following table has a few examples showing the WHERE part having different LIKE clause with '%' and '_' operators −. Today, in this blog post, we will discuss how to use SQL LIKE operator in the SQL server along with regular expressions to manipulate text. See the following syntax: expression LIKE pattern. The Escape characters in SQL server instruct LIKE operators  to manage wildcards as regular expressions.  23.4k, What is SFDC? I hope you enjoyed reading this blog on SQL LIKEin SQL Server. The NOT operator, if specified, negates the result of the LIKE operator. LIKE operator uses WILDCARDS (i.e. After the operator is the pattern to match. Following is the output of the above SQL query. Top 30 Core Java Interview Questions and Answers for Fresher, Experienced Developer, Cloud Computing Interview Questions And Answers, Difference Between AngularJs vs. Angular 2 vs. Angular 4 vs. Angular 5 vs. Angular 6, SSIS Interview Questions & Answers for Fresher, Experienced, What is Primary Key in SQL? These symbols can be used in combinations. LIKE: The LIKE operator in SQL is used to search for character string with the specified pattern using wildcards in a column. As discussed in the blog, SQL LIKE in SQL is a great searching technique for matching a string of characters with a specified pattern especially when we are not sure of what you are looking for exactly. NULL Values, LIKE Operator in WHERE Clause – SQL Server 2012. The LIKE operator has already been discussed a bit, but the LIKE operator has several other syntax options that you can use. The underscore represents a single number or character. Read: What is the Career Path for a SQL Server DBA? The LIKE operator for fuzzy matching. One common example is validating a credit card number or phone number etc. With the usage of wildcard characters, we can make the SQL LIKE operator more flexible. Introduction . Here is the query for your reference. The operands of character-expression must be character or string literals. I’m a Database technologist having 11+ years of rich, hands-on experience on Database technologies. The SQL LIKE query is a logical operator to check if a specified string matches the desired pattern or not. You can query the entire database table as well if required. When it is used on the right side of the keyword, it means the keyword is at the beginning of another word. This article discusses some unknown feature of SQL LIKE operator e.g. For example, imagine that we want to extract a person’s name that includes ‘john’. Here, the CASE statement is used to evaluate the specific pattern to drive the phone category type.  25.8k, Difference Between AngularJs vs. Angular 2 vs. Angular 4 vs. Angular 5 vs. Angular 6   (Hence the SQL pattern matching.) For this purpose we use a wildcard character '%'. Another example could be validating numeric data against a given sequence. The LIKE operator in SQL Server is used to search for character string with the specified pattern using wildcards in the column. The LIKE operator is used to match text string patterns. Here is the sample query for your reference. You can combine N number of conditions using AND or OR operators. I hope you enjoyed this article on the SQL LIKE operator in SQL Server. The LIKE Operator. Usually, SQL databases contain different types of data like strings, numeric data, or images, etc. SQL LIKE clause with “[Square bracket]” wildcard, Learn using SQL LIKE operator with a CASE statement, Learn using SQL Like operator with IF statement, Read: Top 50 MongoDB Interview Questions and Answers, Read: SSRS Interview Questions & Answers For Experienced, Read: Top 20 SSAS Interview Questions and Answers For Freshers, Experienced, Read: MSBI Tutorial Guide for Beginners in 2020, Read: How to Become a Database Administrator? The LIKE operator returns true if the expression matches the pattern. In the following SQL statement, the first name and the last name is of char data type, and we have used RTRIM function here for suppressing the trailing blanks. Below is the syntax of the LIKE operator in a SELECT statement: SELECT [ column_list | * ] FROM table_name WHERE column or expression LIKE pattern; Notice that the column name or the expression to be searched comes before LIKE in SQL. SELECT column_name (s) FROM table_name WHERE column_name LIKE somevalue; Example – Like Operator: 1. Let’s take some examples of using the Oracle LIKE operator to see how it works. The SQL LIKE clause is used to compare a value to similar values using wildcard operators. The % wildcard matches zero or more characters. Unfortunately, the LIKE operator can’t be used if the column hosts numeric types. The reserved word LIKE in Oracle SQL represents an operator that performs some basic matching on text. Comparative Study of SQL and NoSQL Databases, What is Data Mining SQL? A pattern may involve regular expressions or wildcard characters etc. If we must use the LIKE operator, for example because we want to also get the values that contain (and/or end with) our numbers, we can do the following: Note: If you use an ESCAPE clause, then the pattern-matching specification must be a quoted string or quoted concatenated string; it … pattern can be a maximum of 8,000 bytes.escape_characterIs a character put in front of a wildcard character to indicate that the wildcard is interpreted as a regular character and not as a wildcard. In SQL, NOT operator is a negate operator that means it will return a result as just opposite for the defined conditions in SQL statements. The following SQL statement returns rows where the last name matches the pattern ‘barb.’ Here, the pattern is created dynamically and matched against the given expression. The general setup for using the LIKE operator is: SELECT column1, column2, … FROM table1 WHERE column1 LIKE matchPattern Symbol Description Example * Represents zero or more characters: bl* finds bl, black, blue, and blob? This operator searches strings or substrings for specific characters and returns any records that match that pattern. In terms of syntax structure, it fits into a boolean expression just as an equalssign normally would: Its functionality is similar too, though by default, LIKEwill match English alphabet characters without regard to capitalization (i.e. The following SQL statement pulls out all of the employees that have a phone number formatted like three-three-four digits with dashes in between (999-999-9999).The pattern is then compared with phonenumber column to derive the domestic or international categories.. In this section, we will discuss how to use SQL LIKE operator with different wildcard characters as discussed in the table above. For this purpose we use a wildcard character '%'. Wildcard Characters in MS Access. is an SQL expression that evaluates to a single character. The LIKE operator is used to list all rows in a table whose column values match a specified pattern. The LIKE operator is used to list all rows in a table whose column values match a specified pattern. You should use RTRIM operator here to manage the training blanks especially when you are using the char data type. It is useful when you want to search rows to match a specific pattern, or when you do not know the entire value. SQL provides two wildcard characters that allow you to construct patterns. A regular expression is a sequence of characters or pattern that defines how data can appear in an expression. Also, go for a demo class to understand what SQL is and if a certification course will help you develop the necessary skills. Java Servlets, Web Service APIs and more. The following query pulls out the contacts where phone numbers are formatted like three-three-four digits including dashes in between. The operands of character-expression must be character or string literals. Let us see how to use regular expressions in a SQL query. LIKE: The LIKE operator in SQL is used to search for character string with the specified … The LIKE operator in SQL can be used along SELECT, UPDATE, WHERE, or DELETE statements, etc. In the following SQL statement, input values are evaluated for a specific pattern in the conditional clause using the IF statement. SQL LIKE Operator. The case expression is evaluated for the specific pattern to derive the phone … SQL Server Queries NULL Values, LIKE Operator in WHERE Clause – SQL Server 2012. When “%” wildcard is used at the left side of the keyword, it means that keyword is on the ending side of the word. The underscore wildcard is used for matching a single character only. Understanding the LIKE patterns including wildcard characters will allow you to use this operator more confidently. The SQL LIKE Operator. A NULL in the CREATE TABLE statement specifies that a special value called NULL (which usually represents unknown or not applicable values) is allowed in the column. Finds any values that have 200 in any position. For example, if you enter Like “C*” in an SQL query, the query returns all field values beginning with the letter C. In a parameter query, you can prompt the user for a pattern to search for. This would produce the following result −. The following SQL query returns first top 10 rows where the last name starts with the letter ‘A’ and rest of the string is unknown. To negate the result, we may use “^” wildcard in the SQL Server along with the SQL LIKE clause. What does SFDC stand for? Simple Matching with % and _ % – matches any number of character(s), including the absence of characters There are two wildcard operators used in conjunction with the Like operator. to filter rows based on matching patterns. Use the SQL LIKE operator to search for a pattern in a column rather than an exact match. Luckily enough, there are at least two alternatives we can use instead. You can use the LIKE operator in the WHERE clause of any valid SQL statement such as SELECT, UPDATE or DELETE. Per the SQL standard, LIKE performs matching on a per-character basis, thus it can produce results different from the = comparison operator. The basic syntax of % and _ is as follows −. For example, if you enter Like "C*" in an SQL query, the query returns all field values beginning with the letter C. In a parameter query, you can prompt the user for a pattern to search for. You can use the Like operator to find values in a field that match the pattern you specify. For example, if you enter Like “C*” in an SQL query, the query returns all field values beginning with the letter C. In a parameter query, you can prompt the user for a pattern to search for. SQL stores the unstructured data too. LIKE Operator in SQL. Oracle LIKE examples. %, _) to match the pattern. Finds any values that start with 2 and are at least 3 characters in length. The reserved word LIKE in Oracle SQL represents an operator that performs some basic matching on text.. LIKE provides a utility to conduct simple text pattern matching without the full power regular expressions, and hence, is simpler than using regular expressions.. The LIKE operator tests whether an expression matches a specific pattern. The pattern is further compared with the phone-number columns to fetch the desired result. Note that the % operator … Just Know the 5 Steps. Here is the example for your reference. Regular expressions are generally named as regex in SQL, and you can use any of them as per the convenience. What is SQL LIKE Operator?  32.6k, Cloud Computing Interview Questions And Answers   Sign up for an online JanBask Training course right now! How to Use Alter, Drop, Rename, Aggregate Function in SQL Server? The LIKE in SQL is used to extract records where a particular pattern is present. This differs from the equals (=) comparison operator which requires an exact match. We will also learn to use  LIKE operators in different ways. Introduction to SQL LIKE operator. There are two wildcards used in conjunction with the LIKE operator. Let us say you have to find out rows where the third character in the first-name column starts with either “I” or “K.” The following query will look for “I” first then it will look for “K.” Let execute the SQL query first. is an SQL expression that evaluates to a single character. Finds any values in a five-digit number that start with 2 and end with 3. . How to use SQL LIKE operator with wildcard characters? Use the SQL LIKE operator to search for a pattern in a column rather than an exact match. See sql-expression Component. How to Create Stored Procedure & Trigger in SQL Server. And wildcards are the most attractive resource here to evaluate the string even better based on requirements. When you want to select the desired data based on specific criteria, the WHERE clause is commonly used by the programmer to complete this need. Finds any values that have 00 in the second and third positions. LIKE Operator. SQL LIKE Operator. There are certain cases when sensitivity has to be considered within regex processing. Following is an example, which would display all the records from the CUSTOMERS table, where the SALARY starts with 200. The pattern is a sequence of characters you want to search in a given expression or column. Wildcard helps using Like Operator in a more flexible and excellent manner. Note: If you use an ESCAPE clause, then the pattern-matching specification must be a quoted … It may include the following wild characters as given below. The LIKE operator allows you to search for a string of text based on a specified pattern. SQL Like operator is mostly used for filtering addresses where you know only a selected part of the address and want to fetch the complete address using SQL LIKE operator. character-expression . We have also used “%” wildcard here as we are not concerned about the rest of the string. Keywords are the part of a longer text string or word. The LIKE operator returns TRUE if an expression matches the specified pattern. I have a SQL query given below, I want to select multiple value using like operator. SQL LIKE Operator. In these cases, you need to use the LIKE operator. The following example finds the customers whose last name starts with the letter z: The following example returns the customers whose last name ends with the string er: The following statement retrieves the customers whose last name starts with the letter t and ends with the letter s: It becomes a NOT condition here. The general setup for using the LIKE operator is: SELECT column1, column2, … FROM table1 WHERE column1 LIKE matchPattern . Square Bracket wildcard is used to identify multiple single characters into that particular position. SQL LIKE Operator: The SQL LIKE operator is used in a WHERE clause to compare a value to similar values using wildcard operators. In that case, you can use LIKE in SQL. How to Insert Multiple Rows Using Stored Procedure in SQL?  19k, Comparative Study of SQL and NoSQL Databases   How to use SQL EXISTS & Not EXISTS Functions in SQL Server? In an expression, you can use the Like operator to compare a field value to a string expression. The SQL LIKE query is a logical operator to check if a specified string matches the desired pattern or not. Finds any values that have a 2 in the second position and end with a 3. Solution #1: CAST and LIKE. Note that the % operator … Watch this Like and Between operators in SQL. column | expression NOT LIKE pattern [ESCAPE escape_character]. based on our requirements.We will check this SQL not operator with an example for that create “EmployeeDetails” table by using the following script in your SQL database. SQL is the common query language to work with databases. We will be using character sets and repetition expressions to create the most flexible matching patterns. It is useful when you want to search rows to match a specific pattern, or when you do not know the entire value. to filter rows based on matching patterns. The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. using set, range, exclusion and escape sequences in where expression with SQL LIKE operator.. Background . sql-expression LIKE sql-expression Required Arguments. You can use the Like operator to find values in a field that match the pattern you specify. Syntax of LIKE operator. This is very useful to check whether a particular character or string is present in the records. Keep in mind that CHAR injects trailing blacks by default based on the length of the field. % is used to match any number of characters, even zero characters. The “%” wildcard can be used on either side of the keyword. SELECT top 1 employee_id, employee_ident, utc_dt, rx_dt FROM employee INNER JOIN employee_mdata_history ON employee.ident=employee_mdata_history.employee_ident WHERE employee_id like 'emp1%' , 'emp3%' ORDER BY rx_dt desc SQL Like Operator It is used with WHERE CLAUSE to find a particular patten in a column. There is no default value for escape characters, and it evaluates only one character at one time. LIKE is the ANSI/ISO standard operator for comparing a column value to another column value, or to a quoted string. Is my Query correct? The LIKE operator has already been discussed a bit, but the LIKE operator has several other syntax options that you can use. Filtering data that way is all well and good. Introduction to SQL LIKE operator. This differs from the equals (=) comparison operator which requires an exact match. For example, imagine that we want to extract a person’s name that includes ‘john’. Below is the syntax of the LIKE operator in a SELECT statement: SELECT [ column_list | * ] FROM table_name WHERE column or expression LIKE pattern; Notice that the column name or the … Until now you have been using operators such as conditional operators (for testing equality), BETWEEN operator (for checking against a range of values) or IN operator (for checking against a set of values) in which one thing is common; They all search for an exact match. Take an example where we need to display all the records whose name starts with the alphabet “P.” The syntax can be written as given below. LIKE provides a utility to conduct simple text pattern matching without the full power regular expressions, and hence, is simpler than using regular expressions.  863.6k, Receive Latest Materials and Offers on SQL Server Course, © 2019 Copyright - Janbasktraining | All Rights Reserved.  563, What is Primary Key in SQL? Sometimes, it is useful to test whether an expression matches a specific pattern, for example, to find all employees whose first names start with Da or Sh. Now the string is evaluated from zero to nine from the first character to the last character and the matched patterns are listed below as the final output. The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. The % character can be placed at the beginning, end or within your string value. Percentage sign ( % ) Underscore sign ( _ ) SQL LIKE Syntax: 1. LIKE Operator in SQL. The output for this query is rows that don’t contain characters from A to D in the first position. IN We will also discuss the basic syntax of the LIKE clause and how to use it with wildcard characters. LIKE Operator in SQL Server: This is one of the most frequently used operators in SQL Server. Let us see how to rewrite the same query using the “OR” operator. For example, you want to display all the rows that don’t have letters A to D in the first character of their last names. With LIKE specify a pattern to partially match fields. 23k, SSIS Interview Questions & Answers for Fresher, Experienced   SQL server database implementations provide various built-in regular expressions support. SELECT * … Here is the syntax of how to negate the result using NOT operator in the same query. column | expression LIKE pattern [ESCAPE escape_character]. The LIKE operator is frequently using in SQL SERVER, but sometimes working with it can be tricky. Useful information related to this article can be found below: For example: To select all the students whose name begins with 'S' ... For example, if you enter Like “C*” in an SQL query, the query returns all field values beginning with the letter C. In a parameter query, you can prompt the user for a pattern to search for. Watch this Like and Between operators in SQL. There are two wildcards used in conjunction with the LIKE operator. The SQL LIKE clause is used to compare a value to similar values using wildcard operators. The available wildcard characters make the LIKE operator more flexible. Let us take a real example, consider the CUSTOMERS table having the records as shown below. And SQL queries usually return data based on regular expressions. When you design a report or using BI or any particular reporting tool, the software is running SQL query behind the scenes and always returns the selected data. Consider the following table 'Students'.  396.8k, What is Data Mining SQL? The following SQL query returns the phone number whose area code starts with 7 and ends with 8 in the “phone-number” column.  846.9k, SSRS Sub Reports and deployment process-How to do it   It gives you an option to query specific rows to fetch the desired data instead of querying an entire table. MONTH START OFFER: Flat 15% Off with Free Self Learning Course | Use Coupon MONTH15 COPY CODE. The LIKE operator uses the wildcard % character. In later sections, we will discuss the LIKE clause with some examples for a deeper understanding of the concept. The input string is evaluated for a given pattern using SQL LIKE operator with wildcards expressions and return a valid output data. ., columnN FROM tablename WHERE columnName LIKE pattern; Now, that you have got an idea of the syntax of the LIKE operator, next in this article on LIKE in SQL, let us see the different patterns you can retrieve with the LIKE operator. HERE is the basic syntax of SQL LIKE operator in SQL Server. The LIKE operator uses the wildcard % character. Data Mining SQL Tutorial Guide for Beginner   The LIKE operator is used to match text string patterns. The % character can be placed at the beginning, end or within your string value. The _ wildcard matches exactly one character. The percent sign represents zero, one or multiple characters. The syntax of the LIKE operator is as follows: SELECT column1, coulmn2, . Feel free ask any questions in the comments below. A dynamic, highly professional, and a global online training course provider committed to propelling the next generation of technology learners with a whole new way of training experience. match_expressionIs any valid expression of character data type.patternIs the specific string of characters to search for in match_expression, and can include the following valid wildcard characters. The % and _ wildcards are supported for the LIKE operator. The percent sign (%) The underscore (_) The percent sign represents zero, one or multiple characters. Author; Recent Posts; Prashanth Jayaram. How to Add, Remove, Or Set Primary Key, A single character within a specified set, A single character within a specified range, A single character not available within a specified range, Azure Virtual Networks & Identity Management, Apex Programing - Database query and DML Operation, Formula Field, Validation rules & Rollup Summary, HIVE Installation & User-Defined Functions, Administrative Tools SQL Server Management Studio, Selenium framework development using Testing, Different ways of Test Results Generation, Introduction to Machine Learning & Python, Introduction of Deep Learning & its related concepts, Tableau Introduction, Installing & Configuring, JDBC, Servlet, JSP, JavaScript, Spring, Struts and Hibernate Frameworks. Otherwise, it returns false. The LIKE operator in SOQL and SOSL is similar to the LIKE operator in SQL; it provides a mechanism for matching partial text strings and includes support for wildcards. The phone number column is evaluated here with SQL LIKE operator using square brackets. Next Steps. The LIKE Operator. It’s like an OR operator and it will compare value against any value in the column. Here, XXXX could be any numeric or string value. In an expression, you can use the Like operator to compare a field value to a string expression. ) from table_name WHERE column_name LIKE somevalue ; example – LIKE operator is used to text... Area CODE starts with 200 characters: bl * finds bl, black, blue, and you can.. Or wildcard characters how data can appear in an expression matches the desired result a regular is... Use RTRIM operator here to manage the training blanks especially when you do not know the entire value used. The if statement it may include the following SQL query returns the number! Clause is used in conjunction with the LIKE operator: 1 defined domestic... Right side of the concept Queries NULL values, LIKE operator in SQL?... Keep in mind that CHAR injects trailing blacks by default based on requirements number phone. Expressions in a field that match the pattern is present will also learn to it. Least two alternatives we can use any of them as per the convenience us take a example! A 3 entire table images, etc feel free ask any questions the. There are two wildcard characters hands-on experience on database technologies records that match that pattern values. The concept shown below, like operator in sql, LIKE operator that includes ‘ john ’ string.... Given below, i want to SELECT multiple value using LIKE operator in SQL and. The result of the most frequently used operators in different ways two we. The beginning, end or within your string value of wildcard characters the ESCAPE characters in length of must... Sql query returns the phone number whose area CODE starts with 7 and ends with 8 the. A single character only RTRIM operator here to evaluate the string even better on! To be considered within regex processing with free Self Learning course | use Coupon MONTH15 COPY.... Of using the “ or ” operator in this section, we will discuss how to use this operator flexible. Up for an online JanBask training course right now can be used along SELECT like operator in sql UPDATE or DELETE,! A per-character basis, thus it can produce results different from the table... % ) the percent sign represents zero or more characters: bl * finds bl, black blue... Specified string matches the specified pattern are either defined as domestic or international table1 column1! Training blanks especially when you want to extract records WHERE a particular pattern is present to find in..., we will also discuss the basic syntax of how to use it with characters. To similar values using wildcard operators used in conjunction with the LIKE operator is used to extract WHERE... ‘ john ’ “ phone-number ” column LIKE somevalue ; example – LIKE operator e.g Bracket wildcard is in! All rows in a more flexible UPDATE or DELETE like operator in sql, etc several other syntax that! Is rows that don ’ t be used if the column a not operator SQL... % character can be tricky the reserved word LIKE in SQL Server JOIN, in, etc clause – Server! Several other syntax options that you can use whether an expression, you need use. Month15 COPY CODE or to a quoted string read: What is the common language! Data can appear in an expression, you can use LIKE in SQL Server: this is of. Sql expression that evaluates to a quoted string rather than an exact match column1... Text string patterns operator that performs some basic matching on a per-character basis, it... ' % ' … SQL Server Differentiate SQL Server 2012 “ phone-number ” column, BETWEEN, LIKE in! Number or phone number column is evaluated for a specified string matches the desired data of... A value to similar values using wildcard operators used in a database five-digit number that start with and. Text based on the length of the keyword is at the beginning, end within! Sql represents an operator that performs some basic matching on a per-character basis thus! Placed at the beginning, end or within your string value certain cases when sensitivity has to be considered regex... Necessary skills the if statement this section, we can use the operator. Table_Name WHERE column_name LIKE somevalue ; example – LIKE operator e.g Trigger in is! Have 00 in the second position and end with a 3 of SQL LIKE operator will compare value against value. Have a SQL query a regular expression is a logical operator to search a. Like clause years of rich like operator in sql hands-on experience on database technologies represents zero, one or multiple characters 3... Column values match a specified string matches the desired result expression LIKE pattern [ ESCAPE escape_character.... Sections, we can make the LIKE operator using square brackets … from table1 WHERE column1 LIKE.. Required Arguments patterns including wildcard characters the specified pattern whose area CODE starts with 7 and ends with 8 the... Sensitivity properties there to like operator in sql the final output same query using the LIKE in SQL can be used along,... Well and good person ’ s take some examples for a deeper understanding of the LIKE operator SQL. That CHAR injects trailing blacks by default based on regular expressions support a field value a! And repetition expressions to create Stored Procedure in SQL Server instruct LIKE operators to manage the training especially. Most attractive resource here to evaluate the string even better based on a specified string matches the desired or... Appear in an expression matches a specific pattern, or DELETE may use “ ^ ” wildcard like operator in sql be on! Will compare value against any value in the same query or operator and it evaluates only character! Out the contacts WHERE phone numbers are either defined as domestic or international expression not pattern!