How to use sql statements in pl/sql?

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Does a primary key have to be a number?

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What do you mean by dbms? What are its different types?

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What is coalesce in sql?

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What are different types of indexes?

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How do I run a pl sql program?

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Can we create foreign key without primary key?

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What view means?

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Which clause of an UPDATE statement allows you to affect only certain rows of a table? 1. The WHERE clause 2. The SET clause 3. The ROWS AFFECTED clause 4. The ORDER BY clause

6 Answers   HCL,

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how to rename an existing column in a table? : Sql dba

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write a query to display diference between two dates in sql server

2 Answers  

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Maximum how many triggers can we use in trigger and How to find out how many records it fetched.

1 Answers   TCS,

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