Answer Posted / madhav

By using ref cursor along with reocord data type(with out
using record type we can't pass the table name dynamically)

cursor refcursor is ref cursor;---weak ref cursor
v_refcursor refcursor----cursor variable
type recordtye is record(table_record table%rowtye,.....)

begin
if not v_recordtype%isopen then
open v_recordtype for select * from emp
end if;

What is user defined functions?

570

---

Is pl sql still used?

503

---

what is a database transaction? : Sql dba

577

---

Is sql port 1433 encrypted?

566

---

What does trigger mean in psychology?

530

---

---

What are the different types of a subquery?

513

---

Does truncate table reset auto increment?

520

---

what is clause? : Sql dba

573

---

What is meant by cursor in sql?

536

---

Are left and right joins the same?

525

---

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

2008

---

What is clause in sql?

575

---

how to create a table index in mysql? : Sql dba

588

---

If i can use sys.check_constraints to display my constraints from my database using sql server 2005, how can i display then if i am using sql server 2000????

3544

---

How do you optimize a query?

529

---