How do you modify a table in sql?


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More SQL PLSQL Interview Questions

Is sql a scripting language?

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Mention what does plvtab enables you to do when you showthe contents of pl/sql tables?

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Is sql sequential or random?

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Are ddl triggers fired for ddl statements within a pl/sql code executed using the dbms.sql package?

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What are the different types of triggers?

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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

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What is difference between Procedures and Functions ?

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What are the datatypes a available in PL/SQL ?

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When to use inner join and left join?

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What is number function in sql?

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Explain normalization and what are the advantages of it?

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Can you load data into multiple tables at once? : aql loader

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