why should required for Indexed by table in pl/sql

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How many types of functions are there in sql?

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Is t sql a programming language?

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Which join condition can be specified using on clause?

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What are pl sql procedures?

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Can we want to pass a parameter payroll_id to this external pl/sql function, how do we do it?

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What does an inner join do?

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how to find the second highest salary from emp table?

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Do foreign keys improve performance?

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what is the sql query to display current date? : Sql dba

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Can we use delete in merge statement?

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need to split a string into seperate values. eg. col1 col2 ---------- 100 - 'a,b,c' 200 - 'a,x,b,d,e' 300 - 'c' result: value count ------------- a - 2 b - 1 c - 2 etc.

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