CONTAINS (NoSQL query)
APPLIES TO: NoSQL
Returns a boolean indicating whether the first string expression contains the second string expression.
Syntax
CONTAINS(<string_expr_1>, <string_expr_2> [, <bool_expr>])
Arguments
Description | |
---|---|
string_expr_1 |
The first string to search. |
string_expr_2 |
The second string to find. |
bool_expr (Optional) |
Optional boolean value for ignoring case. When set to true , CONTAINS performs a case-insensitive search. When unspecified , this value defaults to false . |
Return types
Returns a boolean expression.
Examples
The following example checks if various static substrings exist in a string.
SELECT VALUE {
containsPrefix: CONTAINS("AdventureWorks", "Adventure"),
containsSuffix: CONTAINS("AdventureWorks", "Works"),
containsWrongCase: CONTAINS("AdventureWorks", "adventure"),
containsWrongCaseValidateCase: CONTAINS("AdventureWorks", "adventure", false),
containsWrongCaseIgnoreCase: CONTAINS("AdventureWorks", "works", true),
containsMismatch: CONTAINS("AdventureWorks", "Contoso")
}
[
{
"containsPrefix": true,
"containsSuffix": true,
"containsWrongCase": false,
"containsWrongCaseValidateCase": false,
"containsWrongCaseIgnoreCase": true,
"containsMismatch": false
}
]
Remarks
- This function performs a full scan.