ARRAY_CAT¶

Syntax¶

ARRAY_CAT( <array1> , <array2> )

Arguments¶

array1

The source array.

array2

The array to be appended to array1.

Returns¶

An ARRAY containing the elements from array2 appended after the elements of array1.

Usage notes¶

• Both arguments must either be structured ARRAYs or semi-structured ARRAYs.

• If you are passing in semi-structured ARRAYs, both arguments must be of ARRAY type or VARIANT containing an array.

• If you are passing in structured ARRAYs, the function returns an ARRAY of a type that can accommodate both input types.

• If either argument is NULL, the function returns NULL without reporting any error.

Examples¶

This example shows how to use ARRAY_CAT():

Create a simple table and data:

CREATE TABLE array_demo (ID INTEGER, array1 ARRAY, array2 ARRAY);

Copy

INSERT INTO array_demo (ID, array1, array2) 
    SELECT 1, ARRAY_CONSTRUCT(1, 2), ARRAY_CONSTRUCT(3, 4);

Copy

Execute the query:

SELECT ARRAY_CAT(array1, array2) FROM array_demo;
+---------------------------+
| ARRAY_CAT(ARRAY1, ARRAY2) |
|---------------------------|
| [                         |
|   1,                      |
|   2,                      |
|   3,                      |
|   4                       |
| ]                         |
+---------------------------+

Copy