why not null constraint showing its constraint type
as 'c'
Answer / prativa mishra
Because It checks the value is not null or null.
Is This Answer Correct ? | 0 Yes | 0 No |
How do you modify a column in sql?
What is a dirty read sql?
Is join same as left join?
consider a table which contain 4 columns,ename,eno,sal and deptno, from this table i want to know ename who having maximum salary in deptno 10 and 20.
What is group by in sql?
how to use case expression? : Sql dba
Write a query to find the employees from EMP table those who have joined in Monday. (there is a column as hiredate which is a date column i.e values are like 03-DEC-81)
What does pragma mean?
What is a recursive join sql?
Explain correlated query work?
What is pl sql record in oracle?
display your age in months?