What are keys in sql?
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What is left join in postgresql?
what is the difference between varray and table data type..please expalain with some examples... under what situation you will go for varray..instead of index by table...
What is lexical units in pl sql?
what are the advantages of using stored procedures? : Sql dba
Why do we use subquery?
Which are the different character-manipulation functions in sql?
Can we join 3 tables in sql?
How delete all records from table in sql?
how to insert the data through views? The view is depending upon more than two tables? how to update materalized views?
What is a primary key? Explain
what is constraining table?
How many types of normalization are there?
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