What is difference between joins and union?
What steps server process has to take to execute an update statement?
Can one improve the performance of sql*loader? : aql loader
What is the difference between drop and truncate commands?
What are the advantages of pl sql over sql?
How many types of triggers exist in pl/sql?
What is trigger in flip flop?
What is raid? How does it help storage of databases?
how to select alphabets in a one column , for this the table name is PA_TASKS and column name is TASK_NUMBER, In TASK_NUMBER the data like this 1.1.3NN,1.1.4NN,1.5.1NN,1.3.2NE,1.5NN,1NN,1.2NE,1CE , For this i need to disply output as NN,NN,NN,NE,NN,NN,NE,CE, Its some urgent requirement ,thanks in advance
What is the first action to perform a query? Suppose I have four tables and five joins and my query is getting slow day by day.
What is a unique constraint?
What does where 1/2 mean in sql?
how can we destroy the session, how can we unset the variable of a session? : Sql dba