# Datatype

| Function Name                                                                                                                 | Description                                                  |
| ----------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ |
| [IS\_BIGINT](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/is_bigint)   | Returns TRUE if the input expression is a big integer value. |
| [IS\_DATE](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/is_date)       | Returns TRUE if the input expression can be cast to a date.  |
| [IS\_INT](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/is_int)         | Returns TRUE if the input expression is an integer value.    |
| [IS\_VARCHAR](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/is_varchar) | Returns TRUE if the input expression is a varchar value.     |
| [SIZE](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/size)              | Returns the number of entries in a map expression.           |
| [TYPEOF](https://docs.spice.ai/~/changes/fl1GUvkHE2461izfYRLa/reference/sql-reference/all-functions/datatype/typeof)          | Reports the type (in string format) of the input expression. |