What is group by in sql?
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How you can copy a file to file content and file to pl/sql table in advance pl/sql?
Does inner join return duplicate rows?
Explain what is a database?
What are the disadvantages of file system?
What is normalization? How many normalization forms are there?
Why is sql better than hql?
What is query syntax?
Is ms sql is free?
What will you get by the cursor attribute sql%notfound?
one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So my requirement is i want output like SAL --- 1000 2000 3000 it mean i want to delete duplicate rows in the table permanently and i want output in the above formatow should u write query?
What is inner join in sql?
1. what is the exact use of hint in sql. 2. How we can avoid index scan in sql even though index is there in the table.
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