The behavior is similar to SQL Server’s casting, but in PostgreSQL, you can also create your own casts to change the default behavior.
POSTGRESQL CAST AS DATETIME HOW TO
PostgreSQL CONVERSION is used to convert between character set encoding.ĬREATE A CAST defines a new cast on how to convert between two data types. It also provides a CONVERSION function, but it isn’t equivalent to SQL Server CONVERT.
PostgreSQL UsageĪmazon Aurora PostgreSQL-Compatible Edition (Aurora PostgreSQL) provides the same CAST function as SQL Server for conversion between data types. SELECT CONVERT(nvarchar(30), GETDATE(), 109) įor more information, see CAST and CONVERT (Transact-SQL) in the SQL Server documentation. The following example converts a date with option style input (109 - mon dd yyyy hh:mi:ss:mmmAM (or PM)). SELECT CONVERT(VARCHAR, '23.7') AS int, CONVERT(int, 23.7) AS decimal įor these two preceding examples, the result looks as shown following. The following example converts string to int and int to decimal. SELECT CAST('23.7' AS varchar) AS int, CAST(23.7 AS int) AS decimal The following example casts a string to int and int to decimal.
Syntax - CAST Syntax:ĬAST ( expression AS data_type )ĬONVERT ( data_type, expression ) Examples Conversion Matrixįor a list of available conversion data types, see Implicit conversions in the SQL Server documentation. CAST is part of the ANSI-SQL specification, but CONVERT isn’t.ĬONVERT accepts an optional style parameter used for formatting.įor more information, see Date and Time styles in the SQL Server documentation.
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