The LIKE operator returns the true value if the pattern matches with the string or value. pattern: This is the pattern that you want to match with the string_or_value.string_or_value: This can be the text or string value or it can be the name of the column.You can use the above symbols together with the LIKE operator. (_): The underscore symbol or sign is used for matching only one or a single character.(%): The percent symbol or sign is used for matching one or multiple characters. ![]() This wildcard can be used with the LIKE operator, in general, there are two types of wildcards that are used with the LIKE operator. The wildcard is a character that acts as a substitute within a string for one or more characters. The LIKE operator in PostgreSQL finds the values or information from the tables based on the pattern-matching approach.īasically, when you use the query containing the PostgreSQL LIKE operator, it matches the value within columns or tables against the pattern which is specified with the LIKE operator using the wildcards. PostgreSQL Like Operator with Multiple Values PostgreSQL Like Operator with Multiple Values for Specific Position.PostgreSQL Like Operator Starts with Multiple Values.PostgreSQL Like Operator Ends with Multiple Values.PostgreSQL Like Operator with Multiple Values Substring.PostgreSQL Like Operator with Multiple Values.The below example shows that like query using percentage wildcard operator. Like query using percentage wildcard operator. The example below shows that, like a query using the limit, we have used limit as 3 and percentage operator.Ĭode: select * from student where stud_name like '%ABC%' limit 3 The student table contains the below data. We have used the student table to describe the example of a like query in PostgreSQL. The query matches the pattern in the second example because we used the uppercase string name “ABC”.īelow is an example of a like query in PostgreSQL:.In the first example, we have used a lowercase letter to match the string using a like query same time, zero rows return because no match is available with the lowercase string name as “abc”.Select * from student where stud_name like '%ABC%' We need to specify the case sensitive string while using like query in PostgreSQL.īelow is the example to show that we need to specify case sensitive strings while using like query in PostgreSQL:Ĭode: select * from student where stud_name like '%abc%' We can also use limit condition with a like query in PostgreSQL.We have also used like query when we have only remembered the half sting using half string, we can find the whole string using like query in PostgreSQL.If the student table contains the column as a student name and we want to find the student name, starting and ending with a specific letter, we have used the same time as the query in PostgreSQL. Like query is used when we cannot remember the string’s exact name.If we have not used a like operator with an underscore and percentage sign, it will work as an equal operator in PostgreSQL.We can use underscore signs with multiple forms in like query, i.e., ‘_xx’, ‘_xx_’, and ‘xx_’.We can combine numbers and characters with each other. ![]()
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