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> )
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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$TYPEOF(NULL);
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+---------------------+
| SYSTEM$TYPEOF(NULL) |
|---------------------|
| NULL[LOB]           |
+---------------------+
SELECT SYSTEM$TYPEOF(1);
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+------------------+
| SYSTEM$TYPEOF(1) |
|------------------|
| NUMBER(1,0)[SB1] |
+------------------+
SELECT SYSTEM$TYPEOF(1e10);
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+---------------------+
| SYSTEM$TYPEOF(1E10) |
|---------------------|
| NUMBER(11,0)[SB8]   |
+---------------------+
SELECT SYSTEM$TYPEOF(10000);
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+----------------------+
| SYSTEM$TYPEOF(10000) |
|----------------------|
| NUMBER(5,0)[SB2]     |
+----------------------+
SELECT SYSTEM$TYPEOF('something');
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+----------------------------+
| SYSTEM$TYPEOF('SOMETHING') |
|----------------------------|
| VARCHAR(9)[LOB]            |
+----------------------------+
SELECT SYSTEM$TYPEOF(CONCAT('every', 'body'));
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+----------------------------------------+
| SYSTEM$TYPEOF(CONCAT('EVERY', 'BODY')) |
|----------------------------------------|
| VARCHAR(9)[LOB]                        |
+----------------------------------------+