What is row_number () in sql?

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How we get all_group_function's(Sum,avg,count,max and min_value of a column(Sal) Using pl/sql anonymous block, with out using group function's. You shouldn't use more than one select statement in entire the program. Like cursor c is select * from <table_name>; except this you can't use another select statement. You can use no of variables as per requirement.

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How many postgresql users are there, worldwide?

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Explain UNION,MINUS,UNION ALL, INTERSECT?

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Is left join faster than join?

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How delete all data from table in sql?

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how to include character strings in sql statements? : Sql dba

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What are the syntax and use of the coalesce function?

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what is a foreign key ? : Sql dba

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Can we use delete in merge statement?

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Is sql microsoft?

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How to fetch common records from two tables?

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