there is A table and B table in A table there 5 rows and in b table there are 2 rows i am firing query select * from a,b what will be the output?

7 Answers   Cognizant,

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Can we create table inside stored procedure?

0 Answers  

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Does execute immediate commit?

0 Answers  

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types of exceptions and what is meant by pragma autonomous_transaction ?what is the use.

4 Answers   3i Infotech,

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what is primary key? : Sql dba

0 Answers  

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What is $$ in sql?

0 Answers  

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What is the difference between in and between in sql?

0 Answers  

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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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in table there r so many rows write a query which two rows r updated last two day befor?

3 Answers   Exilant,

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What kind of join is join?

0 Answers  

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What is the difference between RDBMS and DBMS?

20 Answers   Practical Viva Questions, Sapient, Stag Computers,

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What is pl/sql table? Why it is used?

0 Answers  

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