Answer / Janeshwar Kumar

Innodb offers several advantages over MyISAM:
1. Supports transactions and ACID compliance.
2. Row-level locking for better concurrency control.
3. Foreign key support.
4. Data is stored in tablespaces, allowing for efficient use of disk space.
5. InnoDB can handle larger databases due to its improved performance.

What is function and procedure?

1 Answers  

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What is pl sql record in oracle?

1 Answers  

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Table1: Col1 col2 1 2 10 3 4 89 5 6 Table:2 Col1 col2 3 2 9 5 4 7 6 87 With the help of table1 and table2 write a query to simulate the fallowing results. Output1: Col1 col2 1 2 2 3 3 4 4 5 5 6 Output2: Col1 col2 2 3 10 4 5 89 6 7 1.Write query for single row to multiple row using sql statements. Eg:a,b,c,d,e,f Change to A B C D E F 2. Write query for multiple row to single row using sql statements. Eg2 A B C D E F Change to Eg:a,b,c,d,e,f Table1: Col1 col2 8 5 2 9 4 2 5 1.Write a query to select all the rows from a table1,if the value of A is null then corresponding B’s value should be printed in A’s value.if the value of A is null in that table then corresponding B’s value should be printed as 30. 2. write a query to find the sum of A and B .display the max among both. 3.write a query to find total number of rows from table 1. Note: if any column value is null in a row then that row should be considered as 2 rows. 4.write a query to display all the records of table1 except A containg 2 as well B containg 5. 5.rewrite the fallowing without using join and group by. Select b.title,max(bc.returneddate –bc.checkoutdate)” mostdaysout” From bookshelf_checkout bc, Book shelf B Where bc.title(+)=b.title Group by b.title. 6.rewrite fallowing query Select id_category from category_master X where exists (select 1 from sub_category Y where X.id_category=Y.id_category) Customer: Name phone1 phone2 phone3 bitwise A 23456 67890 12345 --- B 67459 89760 37689 --- Don’t_call Col1 67890 37689 1.q) update the customer table of bitwise with 1 or 0. Exists in don’t_call table menas show -1 Other wise -0. Output. Name bitwise A 010 B 010

1 Answers   Protech,

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What is trigger in flip flop?

1 Answers  

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7. Where would you look for errors from the database design?

1 Answers   Fintellix,

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how to achieve this problem?i am having table with two colums like empno,gender. in gender column, i am having records male,female like that .my final output will be male female 5 6

4 Answers   Hexaware,

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while loading data into database how can u skip header and footer records in sql*loader

1 Answers   Oracle,

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Can we use update in sql function?

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What does the sign mean in sql?

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Why do we need cursors in pl sql?

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Is there a pl/sql pragma similar to deterministic, but for the scope of one single sql select?

1 Answers  

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What are the data types allowed in a table?

3 Answers  

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