NullIf
extends FunctionNode
in package
Usage: NULLIF(expr1, expr2)
Returns NULL if expr1 = expr2 is true, otherwise returns expr1. This is the same as CASE WHEN expr1 = expr2 THEN NULL ELSE expr1 END.
Tags
Table of Contents
Properties
Methods
Properties
$expr1
private
mixed
$expr1
$expr2
private
mixed
$expr2
Methods
getSql()
public
getSql(SqlWalker $sqlWalker) : mixed
Parameters
- $sqlWalker : SqlWalker
parse()
public
parse(Parser $parser) : mixed
Parameters
- $parser : Parser