How to Convert Decimal to Time In Oracle Sql?

To convert a decimal value to time in Oracle SQL, you can use the NUMTODSINTERVAL function. This function allows you to convert a decimal number representing a fraction of a day to a time interval in the format of hours, minutes, and seconds.

For example, if you have a decimal value of 2.5, which represents 2.5 hours, you can convert it to a time format using the following query:

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SELECT NUMTODSINTERVAL(2.5, 'HOUR') AS time_value
FROM dual;

This query will return the result as +00 02:30:00.000000, indicating that the decimal value 2.5 has been converted to 2 hours and 30 minutes.

You can also use this function with different time intervals such as 'MINUTE' or 'SECOND', depending on your requirements.

How to convert 45.75 to time in Oracle SQL?

To convert 45.75 to time in Oracle SQL, you can use the following query:

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SELECT 
  TO_CHAR(TRUNC(45.75), 'FM99999') || ':' || 
  TO_CHAR(TRUNC((45.75 - TRUNC(45.75)) * 60), 'FM00') as converted_time 
FROM dual;

This query will convert the decimal number 45.75 into a time format HH:MM. The TRUNC function is used to extract the hours portion and the minutes portion is calculated by subtracting the truncated hours from the original number and multiplying by 60.

How to convert 40.25 to time in Oracle SQL?

To convert 40.25 to time in Oracle SQL, you can use the following query:

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SELECT TO_CHAR(TO_DATE('00:00', 'HH24:MI') + NUMTODSINTERVAL(40.25, 'HOUR'), 'HH24:MI') AS time_value
FROM dual;

This query adds 40.25 hours to the '00:00' time and then formats the result as a time value in the 'HH24:MI' format. The result will be '16:15', which represents 4:15 PM.

How to convert 15.75 to time in Oracle SQL?

To convert 15.75 to time in Oracle SQL, you can use the following query:

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SELECT 
    TO_CHAR(TRUNC(15.75) || ':' || TO_CHAR(0.6 * MOD(15.75, 1) * 60, 'FM00'), 'HH24:MI') AS time_value
FROM 
    dual;

This query will output the time value as '15:45', representing 15 hours and 45 minutes.

What is the function for converting time to decimal in Oracle SQL?

In Oracle SQL, you can convert time to decimal using the following formula:

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(hours * 60 + minutes) / 60

For example, if you have a time value of '2:30' (2 hours and 30 minutes), you can convert it to decimal by using the formula:

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SELECT (2 * 60 + 30) / 60 AS decimal_time
FROM dual;

This will return a decimal value of 2.5, which represents the time in decimal format.

What is the difference between time and timestamp data types in Oracle SQL?

In Oracle SQL, the TIME data type stores just the time portion of a date, including hours, minutes, and seconds. It does not include any date information. On the other hand, the TIMESTAMP data type stores both date and time information, including hours, minutes, seconds, and fractions of a second.

In general, the TIME data type is used when you only need to store and work with time information, while the TIMESTAMP data type is used when you need to store and work with both date and time information together.