What is parameter substitution in sql?
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What is keys and its types?
what is data integrity? : Sql dba
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Can we declare a column having number data type and its scale is larger than pricesionex: column_name number(10,100),column_name numbaer(10,-84)
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select sal from emp group by sal
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Explain what is sql?
what is the difference between delete and truncate statement in sql? : Sql dba
Explain the significance of the & and && operators in pl sql.
Explain mutating table error.
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