Categories:: System functions (System Information)

SYSTEM$TYPEOF¶

Returns a string representing the SQL data type associated with an expression.

See also:: TYPEOF

Syntax¶

SYSTEM$TYPEOF( <expr> )

Arguments¶

expr: The argument can be a column name or a general expression.

Returns¶

Returns a VARCHAR value that contains the data type of the input expression, for example, BOOLEAN, NUMBER, ARRAY, OBJECT, etc.

Usage notes¶

If TYPEOF is executed without the SYSTEM$ prefix (i.e. as a regular function rather than a system function), it returns different results (see TYPEOF).

Examples¶

SELECT SYSTEM$TYPEOF(NULL);

+---------------------+
| SYSTEM$TYPEOF(NULL) |
|---------------------|
| NULL[LOB]           |
+---------------------+

SELECT SYSTEM$TYPEOF(1);

+------------------+
| SYSTEM$TYPEOF(1) |
|------------------|
| NUMBER(1,0)[SB1] |
+------------------+

SELECT SYSTEM$TYPEOF(1e10);

+---------------------+
| SYSTEM$TYPEOF(1E10) |
|---------------------|
| NUMBER(11,0)[SB8]   |
+---------------------+

SELECT SYSTEM$TYPEOF(10000);

+----------------------+
| SYSTEM$TYPEOF(10000) |
|----------------------|
| NUMBER(5,0)[SB2]     |
+----------------------+

SELECT SYSTEM$TYPEOF('something');

+----------------------------+
| SYSTEM$TYPEOF('SOMETHING') |
|----------------------------|
| VARCHAR(9)[LOB]            |
+----------------------------+

SELECT SYSTEM$TYPEOF(CONCAT('every', 'body'));

+----------------------------------------+
| SYSTEM$TYPEOF(CONCAT('EVERY', 'BODY')) |
|----------------------------------------|
| VARCHAR(9)[LOB]                        |
+----------------------------------------+