The purpose of the SQL CAST function is toconvert one data type to another. It allows for more functionality than theTO_NUMBER,TO_CHARandTO_DATEfunctions in Oracle, and other specific data type functions, as it allows you to specify the actual data types you want to convert to, rather th...
This Oracle tutorial explains how to use the Oracle / PLSQL CAST function with syntax and examples. The Oracle / PLSQL CAST function converts one datatype to another.
CAST in SQL is a function to explicitly convert a value of one data type to another. As part of the SQL standard specification, it is available with the same syntax in different DBMS systems, including MySQL, SQL Server, PostgreSQL, and Oracle. Since database management systems differ, the...
Built-In Data Type Examples The following examples use theCASTfunction with scalar data types. The first example converts text to a timestamp value by applying the format model provided in the session parameterNLS_TIMESTAMP_FORMAT. If you want to avoid dependency on this NLS parameter, then yo...
Here’s an example where you may need to use the CAST function. Let’s say that you have a column with dates stored in a character column. You would like to convert those dates to a true date/time column. This statement illustrates how the CAST function can handle that conversion: ...
The CAST function converts a value from one data type to another and provides a data type to a dynamic parameter (?) or a NULL value. CAST expressions are permitted anywhere expressions are permitted. Syntax CAST ( [ Expression | NULL | ? ] AS Datatype) The data type to which you ...
MSSQL CAST FUNCTION Example 2 Below is an example on cast function with specified length of 4 characters as the targeted data type SELECT StudentID, StudentName, CAST (Score AS char(4)) FROM Student; MSSQL CAST FUNCTION Results MSSQL CAST function output with specified length of targeted dat...
The configuration of the date format Feature Enabled - Cast as date with Oracle Feature Not Enabled - Cast as date with BI Server How to know the format that OBIEE use ? Example Support Documentation / ReferenceAbout When you use the cast function to transform a character data type as a da...
Regardless of the syntax used, the function returns NULL if expr is NULL. CONVERT(expr USING transcoding_name) converts data between different character sets. In MySQL, transcoding names are the same as the corresponding character set names. For example, this statement converts the string 'abc...
The result of a cast is in the same SRS as that of the expression to cast. Casting between spatial types does not change coordinate values or order. If the expression to cast is NULL, the function result is NULL. Casting to spatial types using the JSON_VALUE() function with a RETU...