How to Identify the previously inserted/updated records in
already populated table.
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What is a trigger oracle?
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ================ 1 NULL 2 NULL 3 4 NULL 5 6 7 NULL NULL O/P C = 2 4 6
What is the function of Redo Log ?
What is a nvl function? How can it be used?
What is a database schema in oracle?
select * from emp what happened internally when we write this query in the sql prompt?
consider some table with 4 r 5 columns in that 1 col is DATE type. The data is like that,For each date in that col some 3 fields r there but all the records r having different data. Now i want to display all the columns by performing grouping on the date field ( as SELECTION Operator(*) cannot be used with group function having only one "group by clause". how to do this? can any one help me in finding out the solution plss?
How to remove a row in a database table?
What is a connect identifier?
How to get a list of all tables in the database?
How can we Update a table with out using UPDATE command?
Which Oracle App Is Most Popular One ?