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ARRAY_CONCAT (NoSQL query)

  • 2024年08月22日

APPLIES TO: NoSQL

Returns an array that is the result of concatenating two or more array values.

Syntax

ARRAY_CONCAT(<array_expr_1>, <array_expr_2> [, <array_expr_N>]) 

Arguments

Description
array_expr_1 The first expression in the list.
array_expr_2 The second expression in the list.
array_expr_N (Optional) Optional expression[s], which can contain a variable number of expressions up to the Nth item in the list.

Note

The ARRAY_CONCAT function requires at least two array expression arguments.

Return types

Returns an array expression.

Examples

The following example shows how to concatenate two arrays.

SELECT
 ARRAY_CONCAT(["apples", "strawberries"], ["bananas"]) AS arrayConcat
[
 {
 "arrayConcat": [
 "apples",
 "strawberries",
 "bananas"
 ]
 }
]

Remarks

  • This function doesn't utilize the index.