Answer / suresh pagadala

Self join is nothing but the table performs join condition itself same table is called self join

What is a mutating table and a constraining table?

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what is the difference between primary key and unique key? : Sql dba

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How to Declare Fixed Length String Value In PL SQL

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Table A Table B 1 1 2 1 3 1. Union & union all --> A Union B , A Union all B 2. Minus , Intersect --> A minus B , B Minus A , A Intersect B 3. Joins A join B , A Left Join B A Right Join B , A full Join B 4. %Type - Uses & Benifit 5. Truncate & Delete 6. Pragma Autonomus Transaction 7. how to Perform DDL from function or procedure 8. Can we have DML inside Function 9. Rank & Dense Rank diffrence 10. Water Mark in Oracle 11. Index , Can we have index in all column of table if no then why ?

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select sal from emp group by sal

3 Answers   TCS,

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Can I copy :old and :new pseudo-records in/to an oracle stored procedure?

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How do you bind variables in pl sql?

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Can you have a foreign key without a primary key?

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Create a procedure to delete certain records from a table and display the total number of records deleted in this process. (Condition for deletion can be of ur choice, for instance delete all records where eid='')

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What is aggregate function in sql?

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how to check server status with 'mysqladmin'? : Sql dba

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How does cross join work in sql?

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