STR

    Syntax

    STR( expression )
    

    Description

    Converts the expression expression to string type.

    Argument types:

    • expressionArray of fractional numbers | Array of integers | Array of strings | Boolean | Date | Datetime | Fractional number | Geopoint | Geopolygon | Integer | String | UUID

    Return type: String

    Note

    If an array is passed (only for ClickHouse, PostgreSQL sources), the conversion is performed by a function in the source database and results may vary for different data sources. For consistent results use ARR_STR.

    Examples

    STR(77) = "77"
    
    STR(1 != 1) = "False"
    
    STR(#2019-01-01#) = "2019-01-01"
    
    STR(ARRAY(1, 2, 3, NULL)) = {1,2,3,NULL}  PostgreSQL
    
    STR(ARRAY(1, 2, 3, NULL)) = [1,2,3,NULL]  ClickHouse
    
    STR(ARRAY('a', 'b', '', NULL)) = {a,b,,NULL}  PostgreSQL
    
    STR(ARRAY('a', 'b', '', NULL)) = ['a','b','',NULL]  ClickHouse
    

    Data source support

    ClickHouse 19.13, Microsoft SQL Server 2017 (14.0), MySQL 5.6, PostgreSQL 9.3.