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.
There are several Oracle functions that allow you to convert to a preset data type (TO_DATE, TO_CHAR, TO_NUMBER). There’s also a function that allows you to specify the data type. This is the CAST function. If, for some reason, you need to convert to a specific data type (and l...
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...
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 ...
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: ...
'TRY_CONVERT' is not a recognized built-in function name 'VARCHAR' is not a recognized built-in function name. 'WHEN MATCHED' cannot appear more than once in a 'UPDATE' clause of a MERGE statement. "EXECUTE AT" with Dynamic Linked Server Name "explicit value must be specified for identit...
There is a bug in ORACLE CAST function that makes it to behave differently when using CAST in SQL compared to using CAST in PL/SQL. The CAST function Erroneously ROUNDS fractionals in SQL and Correctly TRUNCATES them in PL/SQL. As we see the PL/SQL behaves the same way as the "defaul...
For the full range of valid specifiers, see Class SimpleDateFormat on the Oracle website.CHAR_TO_TIMESTAMP uses the template you specify as a parameter in the function call. The template causes the TIMESTAMP result to use only the parts of the input-date-time value that you specified in ...
There is a copious number of other instances where the cast function can be used efficiently. As shown in the samples below, you can use the cast function in conjunction with most query commands. However, since it is commonly used in a SELECT statement, the cast function is often forgotten...
"Settings" in DLL project properties and app.config file "The function evaluation requires all threads to run" while accessing music library through wmp.dll "The left-hand side of an assignment must be a variable, property or indexer". Help? "The remote server returned an error: (401) Unau...