Enlist the advantages of sql.


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What are the attributes of SQL*PLUS ?

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what are different types of collation sensitivity? : Sql dba

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Can we join tables without foreign key?

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Why use truncate instead of delete?

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how will you find out the last three records in a table with n no of records and delete them

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how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OBS Name Sal 105 E 5000--> 105 E 5000 102 B 2000 104 D 4000 103 C 3000 101 A 1000--> 104 D 4000

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define a variable representing the expression used to calculate on emps total annual remuneration.use the variable in a statement which finds all emps who can earn 30000 a year or more.

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Can a primary key be a foreign key?

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Why does sql need a server?

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What are string functions in sql?

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What is sql partition?

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Why we use pl sql?

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