i have table T!.
A B C D
NULL 1 2 3
4 NULL 5 6
7 8 NULL 9
10 11 12 NULL.
I WANT COUNT OF NULL VALUES IN TABLE. WRITE A QUERY.
Answer Posted / abinash_mishra
SELECT a_null + b_null + c_null + d_null
FROM (SELECT COUNT (DECODE (a, NULL, 1, NULL)) a_null,
COUNT (DECODE (b, NULL, 1, NULL)) b_null,
COUNT (DECODE (c, NULL, 1, NULL)) c_null,
COUNT (DECODE (d, NULL, 1, NULL)) d_null
FROM t_null);
Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
Is json a nosql?
How to use sql*plus built-in timers?
What is localdb mssqllocaldb?
Is primary key always clustered index?
What is difference between sql and mysql?
What is a recursive stored procedure?
What is package in pl sql?
Explain the rollback statement?
Can we create table in function?
How to take user input in pl sql?
How to place comments in pl/sql?
What is right join sql?
How can you load multi line records? : aql loader
What schema means?
Which is better varchar or nvarchar?