I am new to database.I am having doubt that what is the difference between IN and NOT IN performance wise. When I am using IN, takes less time for the same query(Logically same query) when I use NOT ...
I'm currently using Oracle 11g and let's say I have a table with the following columns (more or less) Table1 ID varchar(64) Status int(1) Transaction_date date tons of other columns And this ...
I have a table with columns of Hotel names, city name and country name (of the respective hotels). I need to create a view of unique entries which will contain city name and country name columns. Any ...
I'm connected to the oracle server remotely. I need to export a table data(the whole table) with millions of records but due the hosting restrictions I can only use SQL (no exp , expdp) . Therefore ...