Categories:

String & Binary Functions (Matching/Comparison)

STARTSWITH

Returns true if expr1 starts with expr2. Both expressions must be text or binary expressions.

Tip

You can use the search optimization service to improve the performance of queries that call this function. For details, see Search Optimization Service.

Syntax

STARTSWITH( <expr1> , <expr2> )
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Returns

Returns a BOOLEAN. The value is TRUE if expr1 starts with expr2. Returns NULL if either input expression is NULL. Otherwise, returns FALSE.

Collation Details

The collation specifications of all input arguments must be compatible.

This function does not support the following collation specifications:

  • pi (punctuation-insensitive).

  • cs-ai (case-sensitive, accent-insensitive).

Note

To use this function with a column that has the upper or lower collation specifiers, the 2024_02 behavior change bundle must be enabled in your account. Currently, it is enabled by default.

If the 2024_02 behavior change bundle is disabled in your account, this function will not behave as documented.

To enable this bundle in your account, execute the following statement:

SELECT SYSTEM$ENABLE_BEHAVIOR_CHANGE_BUNDLE('2024_02');
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Examples

select * from strings;

---------+
    S    |
---------+
 coffee  |
 ice tea |
 latte   |
 tea     |
 [NULL]  |
---------+

select * from strings where startswith(s, 'te');

-----+
  S  |
-----+
 tea |
-----+
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