STRING function [String]

Concatenates one or more strings into one large string.

Syntax

STRING( string-expression [, ... ])

Parameters

string-expression The string to be evaluated.
If only one argument is supplied, it is converted into a single expression. If more than one argument is supplied, they are concatenated into a single string.

Remarks

Numeric or date parameters are converted to strings before concatenation. The STRING function can also be used to convert any single expression to a string by supplying that expression as the only parameter.

If all parameters are NULL, STRING returns NULL. If any parameters are non-NULL, then any NULL parameters are treated as empty strings.

Standards and compatibility

SQL/2003 Vendor extension.

Example

The following statement returns the value testing123.

SELECT STRING( 'testing', NULL, 123 );