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TO_CHAR - Convert Datetime to String - Oracle to SQL Server Migration. In Oracle, TO_CHAR function converts a datetime value (DATE, TIMESTAMP data types i.e.) to a string using the specified format. In SQL Server, you can use CONVERT or CAST functions to convert a datetime value (DATETIME, DATETIME2 data types i.e.) to a string. Oracle:
Converting a values time stamp from UTC to CST (or any timezone) ended up being more complicated than I expected. What is happening above is basically taking the UTC timestamp (td.dtmUTCTimeStamp) value, telling Oracle its a UTC timestamp and then converting it to the âAmerica/Chicagoâ (CST) timezone.The magic really happens with the âat time zoneâ key words.My second task was a bit more easy.Oracle has a nifty function called SYS_EXTRACT_UTC which will pull out the UTC time stamp from the date time (with timezone) passed to it. To make this dynamic I pass the function the SYSTIMESTAMP.y second task was a bit more easy. Oracle has a nifty function called SYS_EXTRACT_UTC which will pull out the UTC time stamp from the date time (with timezone) passed to it. To make this dynamic I pass the function the SYSTIMESTAMP.