what is sql server agent? : Sql dba

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How do you write an inner join query?

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What is clustered index in sql?

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Can we perform dml in function?

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SELECT emp_num, years, SUM(salary) FROM sales UNION ALL SELECT emp_id, SUM(takehomepay) FROM marketing What error is present in the sample code above? 1. Queries being combined with the UNION ALL statement are not allowed to have SELECT lists with a different number of expressions. 2. You are not allowed to use aggregate functions within two queries joined by a UNION ALL statement. 3. The UNION ALL statement incorrectly combines the "years" result from the first query with the "SUM (takehomepay)" result from the second query. 4. Unless the UNION ALL statement is replaced with a UNION statement, the queries will return duplicates. 5. The "emp_id" column from the second query must be renamed (or aliased) as "emp_num" so that it corresponds to the column name from the first query. Otherwise, the queries will not execute.

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what is the use of HASH, LIST partitions?

1 Answers   ITC Infotech,

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If I have a table T with 4 rows & 2 columns A & B. A has values 1,2,3,4. and B has 10,20,30,40. Write an Update SQL query which can Swap the values of A & B for all records. (Do not use a sub-query)

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What is %s in sql?

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create a store procedure and created synonms for that store procedure after modify that store procedure will effect on synonms? If we delete the store procedure what happened to that synonms?

2 Answers   Polaris,

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Explain what is sql*plus?

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Write a sql query to get the third highest salary of an employee from employee_table?

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What is difference between ms sql and mysql?

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