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You are viewing the documentation of an older version of the TiDB database (TiDB v3.1).

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

Control Flow Functions

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

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