How do I find sql profiler?

0 Answers  

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How do u count no of rows in a table?

8 Answers   CTS,

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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.

3 Answers  

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Is it possible to pass parameters to triggers?

0 Answers  

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What operating systems are supported by oracle sql developer?

0 Answers  

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Why do we use procedures?

0 Answers  

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Do you know the basic structure of PL/SQL?

3 Answers  

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What is extent clause in table space?

1 Answers   TCS,

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How do you bind variables in pl sql?

0 Answers  

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What if we write return in procedure?

0 Answers  

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Is join and inner join the same?

0 Answers  

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Can we commit in trigger?

0 Answers  

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