What does % mean in sql

% in SQL represents a wildcard character, matching any number of characters in the string, which can appear at the beginning, middle, or end of the string, and is used for pattern matching in the LIKE clause.

What does % mean in SQL

Answer:

SQL The % in is a wildcard character that matches any number of characters in the string.

Details:

• You can use % in the LIKE clause for pattern matching.
• % matches zero or more characters.
• % can appear at the beginning, middle, or end of a string.

Example:

• #SELECT * FROM table WHERE field LIKE 'abc%' Match field field with "abc" All values ​​starting with .
• SELECT * FROM table WHERE field LIKE '%xyz' Matches all values ​​of field field ending with "xyz".
• SELECT * FROM table WHERE field LIKE '�c%' Matches all values ​​of field field containing the "abc" substring.

Note:

• If you need to match % itself, you need to use the escape character \, that is, \%.
• % can also be used in combination with other wildcard characters, such as _ (underscore), to match a single character.

The above is the detailed content of What does % mean in sql. For more information, please follow other related articles on the PHP Chinese website!