For errors like this you should involve oracle support. Unfortunately you do not mention what oracle release you are using. The error can be related to optimizer bind peeking. Depending on the oracle version different workarounds apply. You have two ways to address this: upgrade to 11.2 set oracle parameter _optim_peek_user_binds = false Of course underscore parameters … Read more
No, prior to Oracle version 12.2, identifiers are not allowed to exceed 30 characters in length. See the Oracle SQL Language Reference. However, from version 12.2 they can be up to 128 bytes long. (Note: bytes, not characters).
Yes: You can use Inner Join to join on multiple columns. Create table Insert values
Use DATENAME or DATEPART:
It means that both tables in the query have the column user_id. You need to specify which one you want to get in the SELECT statement like SELECT username, image, re.user_id
I have 2 subqueries, but I’m having trouble joining columns together from the same tables. I tried: If I simply end the query with ON a.userid = b.sourceid it works, but how can I also join these tables on another column also ON a.listid = b.destinationid ?? Any help appreciated.
MySQL supports a multi-table UPDATE syntax, which would look approximately like this: You can update the Train table and delete from the Reservations table in the same transaction. As long as you do the update first and then do the delete second, it should work.
I am working with a query which contains “CASE” statement within “WHERE” clause. But SQL Server 2008 is giving some errors while executing it. Can anyone please help me with the correct query? Here is the query:
You are mixing implicit joins with explicit joins. That is allowed, but you need to be aware of how to do that properly. The thing is, explicit joins (the ones that are implemented using the JOIN keyword) take precedence over implicit ones (the ‘comma’ joins, where the join condition is specified in the WHERE clause). Here’s an outline of … Read more
I am getting the above error when trying to connect to a server database from a client using service name orcl. It is getting connected when I am using the other service name i.e. dms Below is my listener.ora Please tell me what to do?