What are the sql commands?


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More SQL PLSQL Interview Questions

Show how functions and procedures are called in a pl/sql block.

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What is auto increment?

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What are the types of dbms?

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wtite down triggr not any entry on Sunday

2 Answers   NIT,


What is bulk compiling in pl/sql.?

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Why is %isopen always false for an implicit cursor?

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Is sqlite thread safe?

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what is Hash join?how it is different from inner join?what is the sign used for inner join?(eg: like the (+) sign used for outer join)?

3 Answers   TCS,


What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.

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what is the use of double ampersand (&&) in sql queries?

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Difference between views and materialized views?

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What is bulk collect in pl sql?

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