Categories:: Conversion Functions

TO_VARIANT¶

Converts any value to a VARIANT value or NULL (if input is NULL).

Syntax¶

TO_VARIANT( <expr> )

Arguments¶

expr: An expression of any data type.

Usage Notes¶

The TO_VARIANT function cannot be used directly in an INSERT statement. Instead, use INSERT INTO ... SELECT.... The Examples section shows how to do this.

Examples¶

Create and fill a table:

CREATE TABLE double_demo (variant1 VARIANT);
INSERT INTO double_demo (variant1)
    SELECT TO_VARIANT(3.14);

Retrieve the original value from the VARIANT column:

SELECT TO_DOUBLE(variant1) FROM double_demo;
+---------------------+
| TO_DOUBLE(VARIANT1) |
|---------------------|
|                3.14 |
+---------------------+