Important

You are viewing the documentation of an older version of the TiDB database (TiDB v5.4).

It is recommended that you use the latest LTS version of the TiDB database.

Control Flow Functions

TiDB supports all of the control flow functions available in MySQL 5.7.

NameDescription
CASECase operator
IF()If/else construct
IFNULL()Null if/else construct
NULLIF()Return NULL if expr1 = expr2
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