In PostgreSQL, the TO_TIMESTAMP function is used to convert a string representation of a timestamp into a timestamp data type. It allows you to parse timestamp strings in a specific format and convert them into valid timestamp values that can be stored or used for date and time-related operations. The basic syntax of the TO_TIMESTAMP…
In PostgreSQL, the DATE_TRUNC function is used to truncate a date, time, or timestamp value to a specified precision. Truncation means setting specific parts of the date or time to zero or a default value while keeping the more significant parts unchanged. The basic syntax of the DATE_TRUNC function is as shown below: DATE_TRUNC(precision, source);…
In PostgreSQL, the TO_DATE function is used to convert a string representation of a date into a date data type. It is often used to parse date strings in a specific format and convert them into valid date values that can be stored or used for date-related operations. The basic syntax of the TO_DATE function…
In PostgreSQL, the NOW() function is used to fetch the current date and time according to the server’s clock. It returns the current timestamp in the timestamp with time zone format. The NOW() function is commonly used when you want to record the current date and time in a database table or perform date and…
In PostgreSQL, you can use the CURRENT_TIME function to retrieve the current time without the date component. It returns the current time in the time data type, which includes the hours, minutes, seconds, and fractional seconds. The basic syntax of the CURRENT_TIME function is as shown below: SELECT CURRENT_TIME; Below is an example of using…
In PostgreSQL, the CURRENT_DATE function is used to retrieve the current date without the time component. It returns the current date in the date data type, which includes the year, month, and day information. This function is helpful when you need to work with the current date in queries or when inserting records with the…
In PostgreSQL, the AGE() function is used to calculate the difference between two dates or timestamps and returns the result as an interval. The interval represents the duration between the two dates in years, months, days, and fractional seconds. The basic syntax of the AGE() function is as shown below: AGE(end_date, start_date); where end_date is…
In PostgreSQL, the MOD() function is used to calculate the remainder of a division operation between two numeric values. It returns the remainder after dividing the first argument by the second argument. The basic syntax of the MOD() function is as shown below: MOD(dividend, divisor) In the above syntax, dividend is the numeric value that…
In PostgreSQL, the TRUNC() function is used to truncate a numeric value to a specified number of decimal places or to remove the decimal part completely. Unlike ROUND(), which rounds the number, TRUNC() simply truncates or cuts off the decimal part without any rounding. The basic syntax of the TRUNC() function is as below: TRUNC(numeric_expression…
In PostgreSQL, the ROUND() function is used to round a numeric value to a specified number of decimal places or to the nearest integer. It allows you to round numbers based on your desired precision. The basic syntax of the ROUND() function is as below: ROUND(numeric_expression [, decimal_places]) where numeric_expression is the numeric value or…