What Is the Inverse Of Sys_extract_utc() In Oracle?

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The inverse of sys_extract_utc() in Oracle is sys_extract_utc() itself. This function is used to extract the UTC (Coordinated Universal Time) from a given datetime value. So, if you want to revert back to the original datetime value after extracting the UTC, you can simply use sys_extract_utc() again with the extracted UTC value.


How to decode the output of sys_extract_utc() in Oracle?

The sys_extract_utc() function in Oracle is used to extract the UTC (Coordinated Universal Time) from a given date value. This function returns a TIMESTAMP WITH TIME ZONE data type.


To decode the output of sys_extract_utc(), you can use the TO_CHAR() function to convert the TIMESTAMP WITH TIME ZONE value into a human-readable format. You can specify the format mask to display the date and time components in the desired format.


For example, you can use the following SQL query to decode the output of sys_extract_utc():

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SELECT TO_CHAR(sys_extract_utc(SYSDATE), 'YYYY-MM-DD HH24:MI:SS') AS UTC_Time
FROM dual;


This query retrieves the current system date and time in UTC format and converts it into a string in the format 'YYYY-MM-DD HH24:MI:SS'. You can adjust the format mask in the TO_CHAR() function to display the date and time components as needed.


What is the reciprocal operation for sys_extract_utc() in Oracle?

The reciprocal operation for the sys_extract_utc() function in Oracle would be sys_extract_tz().


What is the reverse action of sys_extract_utc() in Oracle?

The reverse action of sys_extract_utc() in Oracle is sys_extract_tz(). This function converts a timestamp with time zone into a timestamp without a time zone.

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