How to read/write files from pl/sql?

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What is nosql example?

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Under what condition it is possible to have a page level lock and row lock at the same time for a query? : Transact sql

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how to delete duplicate rows from a join tables(I have three tables on that join) how do you know which join is need to be used? The select statement I have is: SELECT gc_skill_type.skill_type, gc_area_tec.area, gc_technology.technology, gc_technology.id_technology, gc_area_tec.id_area_tec FROM gc_skill_type, gc_area_tec, gc_technology WHERE gc_area_tec.id_skill_type (+) = gc_skill_type.id_skill_type AND gc_technology.id_area_tec (+) = gc_area_tec.id_area_tec order by gc_skill_type.skill_type asc, gc_area_tec.area asc, gc_technology.technology asc

1 Answers   IAS,

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What is dcl in sql?

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how u can find the n row from a table?

19 Answers   Tech Mahindra,

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How many types of primary keys are there?

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what are the performance and scalability characteristics of mysql? : Sql dba

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Which are the most commonly used sql joins?

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What is a CTE (Common Table Expression), and how is it different from a subquery?

3 Answers  

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Can we use distinct and group by together?

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What is cross join sql?

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