What is an inconsistent dependency?
1046
Is primary key an index?
991
Explain raise_application_error.
1098
how do you control the max size of a heap table? : Sql dba
980
What are tuples in sql?
1135
What can sql server reporting services do?
1111
What are analytical functions in sql?
1028
What problem one might face while writing log information to a data-base table in pl/sql?
1166
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
2420
what is schema? : Sql dba
1050
what does it mean to have quoted_identifier on? What are the implications of having it off? : Sql dba
1006
Why partition by is used in sql?
1042
what are local and global variables and their differences? : Sql dba
1072
what are the differences among rownum, rank and dense_rank? : Sql dba
1040
Define tables and fields in a database
1130
