Sounds complex but let’s look at it in action. SYSDATE returns only the date but it has the time if you need it. To query the current date and time, you’ll want to use the SYSDATE and SYSTIMESTAMP functions. Rather than query a function directly you’ll want to query from a table. Getting the current date from Oracle is just as easy but takes a tiny bit more. Actually there are quite a few more that deal with time zones and other such items but that’s a topic for another post. These aren’t the only two functions for getting the current time. Using SYSDATETIME() results in accuracy of 100 nanoseconds because it’s based on the DATETIME2 data type. 007 seconds and is based on the DATETIME data type. This will return the current time with accuracy of. To get the current date simply query the GETDATE() function. Querying dates is a breeze in SQL Server but can be done in many ways. Obtaining the current date and time in SQL Server An example of this is the ISNULL function. These additions help enhance the database performance over that of the ANSI standard language. For Oracle this may be PL/SQL and SQL Server it’s T-SQL.
Since SQL itself is a standard, why is this post needed? Well as it turns out, each database vendor placed their own flavors of SQL in their software.
Sql server date functions iso#
SQL or Structured Query Language has been an ANSI and ISO standard since the mid 1980’s. Are you a DBA and just inherited a SQL Server or Oracle database? Are you migrating from one or the other? I’ve decided to start a series comparing these two RDBMS giants and the first topic is date formatting.īoth of these systems use SQL, which is a language used to access and modify data in databases.
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