Statement representing one character in sql

In SQL, use single quotes (') to represent a single character, and the syntax is '[character]. ' Character literals must be enclosed in single quotes and can contain only one character. Special characters can be represented using the escape character (').

Statements that represent one character in SQL

In SQL, single quotes (' ).

Syntax:

'[字符]'

Example:

SELECT 'a';

The above statement will return the character "a".

Note:

• character literals must be enclosed in single quotes.
• Character literals can only contain a single character.
• If you need to represent special characters (such as the single quote itself), you can use escape characters (backslash \).

Example:

To represent the single quote itself, you can use the following statement:

'\''

This will return the character '.

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