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In Oracle, TO_CHAR function converts a datetime value (DATE, TIMESTAMP data types i.e.) to a string using the specified format.In. Server, you can use CONVERT or CAST functions to convert a datetime value (DATETIME, DATETIME2 data types i.e.) to a string.Oracle :efault Format. In Oracle, the default format of a datetime string depends on the NLS_DATE_FORMAT session variable: Oracle : In. Server, the default format is Mon DD YYYY HH12:MI : SQL Server : Note that. Server CAST can convert with the default format only.
If so then SAS will have already converted the invalid dates that you have in your date variable in Oracle into missing values. You will not be able to tell the difference between a value that Oracle considers null and one in that strange date format with zeros both will stored as SAS missing values. libname mylib oracle .... ; proc sql ;