What is varray in pl sql?

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What is the benefit of foreign key?

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In a table i have columns A,B,C and i have a composite index on columns A,B if so will the following query uses index or not? SELECT sal,name FROM <table_name> WHERE A=<value> AND B=<value> AND C=<value>;

2 Answers   Mastek,

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discuss about myisam index statistics collection. : Sql dba

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What is the best sql course?

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what's the difference between a primary key and a unique key? : Sql dba

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What are two virtual tables available during database trigger execution ?

2 Answers  

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When is a declare statement required?

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how to see the create table statement of an existing table? : Sql dba

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What is a behavioral trigger?

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What is pl sql block structure?

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if a table is getting updated what happens if a function is called from sql query?

2 Answers   RBS,

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