HP Interview -2016 Unix 1) grep command in unix 2) what is set command

1 Answers   HCL,

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what is a join? : Sql dba

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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 are primary key and foreign key and how they work?

0 Answers  

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Is mariadb a nosql database?

0 Answers  

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What is the difference between microsoft access and sql?

0 Answers  

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How do I remove sql developer from windows 10?

0 Answers  

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What is the difference between Union and Union all. Which is faster.

0 Answers  

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how many triggers are allowed in mysql table? : Sql dba

0 Answers  

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What is informix sql?

0 Answers  

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Can we rollback truncate?

0 Answers  

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What are stored procedures in mysql?

0 Answers  

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