![]() ![]() ![]() In PostgreSQL, we can assign the default value of the current timestamp to a column using the “default” keyword during table creation. ![]() The current timestamp is useful and important in PostgreSQL to return the date and timestamp with the time zone. The start time of the current statement is the time of the latest command received from the client. The current timestamp and the current time are to deliver the values with the time zone in PostgreSQL. The current timestamp is used as the default timestamp value of a column in PostgreSQL. The below example shows that now, the current timestamp and transaction timestamp function work similarly to each other: Example #1Įxplanation: The above example shows the time and timestamp of all three functions working is the same. But the transaction timestamp will reflect the same, which the function returned.Įxamples to Implement PostgreSQL CURRENT_TIMESTAMP() Transaction timestamp and the current timestamp is equivalent to each other in PostgreSQL.The current timestamp and now function is similar to work in PostgreSQL. In PostgreSQL, the internally current timestamp will work as now function in PostgreSQL.We can use the precision parameter with the current timestamp function in PostgreSQL.It provides the current timestamp information in PostgreSQL. PostgreSQL utilizes the current timestamp to retrieve the current date and time, including the time zone.How does PostgreSQL CURRENT_TIMESTAMP() function work?īelow is the working of the current timestamp in PostgreSQL: If we do not use the precision argument in the current timestamp function, it will return a timestamp with time zone this includes include the full fractional second’s precision in PostgreSQL. The precision determines the number of digits in the fractional seconds portion of the timestamp. Precision: The current timestamp function in PostgreSQL allows an optional parameter to specify the precision of fractional seconds in the result. It retrieves the current date and time, including the time zone, at the beginning of the ongoing transaction. ![]() The SQL-Standard function in PostgreSQL that returns values based on the start time of the current transaction is ‘current_timestamp’. Get the Current System Date SELECT CONVERT (DATE, SYSDATETIME())Ĭ.Current timestamp: Current timestamp in PostgreSQL will return the current date and time. Get the Current System Date and Time SELECT SYSDATETIME() Note that the actual values returned will reflect the actual day / time of execution. The examples return the values in series, so their fractional seconds might differ. These examples use the six SQL Server system functions that return current date and time values, to return the date, the time, or both. Views and expressions that reference this column cannot be indexed. Transact-SQL statements can refer to CURRENT_TIMESTAMP, anywhere they can refer to a datetime expression.ĬURRENT_TIMESTAMP is a nondeterministic function. To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation. ![]()
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