To convert a Unix timestamp to a local date in Oracle, you can use the TO_CHAR function along with the FROM_TZ and TO_TIMESTAMP functions.
First, you need to convert the Unix timestamp to a timestamp data type using the TO_TIMESTAMP function. Then, you can use the FROM_TZ function to convert the timestamp to a timestamp with time zone data type.
Finally, use the TO_CHAR function to convert the timestamp with time zone data type to a local date in the desired format.
For example, you can use the following SQL query to convert a Unix timestamp to a local date:
1 2 |
SELECT TO_CHAR(FROM_TZ(TO_TIMESTAMP(UNIX_TIMESTAMP), 'UTC') AT TIME ZONE 'America/New_York', 'YYYY-MM-DD HH24:MI:SS') AS local_date FROM dual; |
This query converts the Unix timestamp to a local date in the YYYY-MM-DD HH24:MI:SS format for the America/New_York time zone. You can replace 'America/New_York' with the desired time zone for your local date conversion.
Best Oracle Database Books To Read in November 2024
What is the PL/SQL function for converting unix timestamp to local date in oracle?
To convert a Unix timestamp to a local date in Oracle PL/SQL, you can use the following function:
1 2 3 4 5 6 7 |
CREATE OR REPLACE FUNCTION unix_timestamp_to_date(p_unix_timestamp IN NUMBER) RETURN DATE IS l_date DATE; BEGIN l_date := TO_DATE('1970-01-01', 'YYYY-MM-DD') + (p_unix_timestamp / (24*60*60)); RETURN l_date; END unix_timestamp_to_date; |
You can then call this function and pass the Unix timestamp as a parameter to get the corresponding local date. For example:
1
|
SELECT unix_timestamp_to_date(1609459200) FROM DUAL;
|
This will return the local date corresponding to the Unix timestamp 1609459200.
How to convert unix timestamp to date format with time zone in oracle?
To convert a Unix timestamp to a specific date format with a time zone in Oracle, you can use the following query:
1 2 |
SELECT TO_TIMESTAMP_TZ(TO_CHAR(TO_DATE('1970-01-01','YYYY-MM-DD') + (:unix_timestamp / 86400), 'YYYY-MM-DD HH24:MI:SS'), 'YYYY-MM-DD HH24:MI:SS') AS converted_date FROM dual; |
In this query:
- Replace :unix_timestamp with the Unix timestamp you want to convert.
- The TO_DATE('1970-01-01', 'YYYY-MM-DD') function converts the Unix epoch date to an Oracle date format.
- :unix_timestamp / 86400 converts the Unix timestamp to Oracle date format by dividing it by the number of seconds in a day.
- TO_CHAR function is used to format the date as 'YYYY-MM-DD HH24:MI:SS'.
- TO_TIMESTAMP_TZ function is used to convert the date to timestamp with time zone format.
This query will give you the converted date with the specified time zone.
What is the formula for converting unix timestamp to UTC date in oracle?
The formula for converting a Unix timestamp to a UTC date in Oracle is as follows:
1 2 |
SELECT TO_DATE('1970-01-01', 'YYYY-MM-DD') + (your_unix_timestamp / 86400) AS utc_date FROM dual; |
In this formula, replace your_unix_timestamp with the Unix timestamp you want to convert to a UTC date. The division by 86400 is necessary because Unix timestamps are measured in seconds, while dates in Oracle are measured in days. By dividing the timestamp by 86400, we convert the seconds to days and add them to the base date of January 1, 1970.
How to convert unix timestamp to milliseconds in oracle?
In Oracle, you can convert a Unix timestamp to milliseconds using the following query:
1 2 |
SELECT unix_timestamp * 1000 AS milliseconds FROM your_table_name; |
Replace unix_timestamp with the column name that stores the Unix timestamp in your table and your_table_name with the name of your table. This query will multiply the Unix timestamp by 1000 to convert it to milliseconds.
