Can you rollback after commit?

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What are schema-level triggers?

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What are sql*plus environment variables?

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write an sql query to find names of employee start with 'a'? : Sql dba

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Is there any restriction on the use of union in embedded sql?

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how to convert dates to character strings? : Sql dba

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Why do we use triggers?

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What is a composite primary key?

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How many columns should be in an index?

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How are multiple column = value pairs delimited in the SET clause of an UPDATE statement? 1. With commas (SET price = 0, status = 'I') 2. With parentheses (SET (price = 0) (status = 'I')) 3. With double-pipes (SET price = 0 || status = 'I') 4. With square-brackets (SET [price = 0] [status = 'I'] 5. With single or multiple spaces (SET price = 0 status = 'I')

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What does select count (*) mean in sql?

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What is compiled query?

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