Explain sql data types?

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What is a field in a database?

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How do you update a table in sql?

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How we get all_group_function's(Sum,avg,count,max and min_value of a column(Sal) Using pl/sql anonymous block, with out using group function's. You shouldn't use more than one select statement in entire the program. Like cursor c is select * from <table_name>; except this you can't use another select statement. You can use no of variables as per requirement.

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How many types of functions are there in sql?

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what are the types of subquery? : Sql dba

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what are set operators in sql? : Sql dba

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What are the two virtual tables available at the time of database trigger execution?

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Can I create table without primary key?

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Are sql views compiled?

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What is the order of sql select?

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What is referential integrity ?

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