How reterive duplicate value in SQL?
Answers were Sorted based on User's Feedback
Answer / justus
create table emp
empid empname
----- --------
101 a
102 b
103 a
104 c
105 a
select empname from emp group by empname having count(empname)>1
| Is This Answer Correct ? | 12 Yes | 2 No |
Answer / sivasiva
create table emp
empid empname
----- --------
101 a
102 b
103 a
104 c
105 a
select empid from emp groupby empid,empname having count>1
| Is This Answer Correct ? | 17 Yes | 12 No |
Answer / satishkulala
select empname from emp group by empname having count(empname)>1
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / rajesh.a
select count(*),empname from emp group by empname having count(*)>1
| Is This Answer Correct ? | 4 Yes | 0 No |
create table emp (empid int,empname varchar)
insert into emp values (101,'a')
insert into emp values (102,'b')
insert into emp values (103,'a')
insert into emp values (104,'c')
insert into emp values (105,'a')
select * from emp
SELECT EmpName,Count(EmpID)Cnt From Emp Group By EmpName
Having Count(EmpName) > 1
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / ashish jain
create table emp
empid empname
----- --------
101 a
102 b
103 a
104 c
105 a
select empname from emp where count(empname)>1
| Is This Answer Correct ? | 6 Yes | 10 No |
I have a table in which phno is one of the columns.i do have some values in tht phno column.i need to update phno column values with 0(zero) as prefix.give me a correct solution plz...
How do you load large data to the SQL server database?
what is a join and explain different types of joins? : Sql server database administration
What are the differences between sql server and mysql.
How to provide login information for a new odbc dsn?
explain different types of jions with examples briefly?
What are the advantages of partitioning?
What are the pros and cons of putting a scalar function in a queries select list or in the where clause?
Can we drop user if user mapped to any logins
You are designing a database for your human resources department in the employee table, there is a field for social security number, which cannot contain null values if no value is given, you want a value of unknown to be inserted in this field what is the best approach?
how to update a null value field in sql server eg a table contains 3 fields id,name,salary and 3 records salary of 1 record is null i want update the nullfield 111 arun 300 112 ddd 200 113 ttt null i want to update table with add 100 to every record include null after updation the recrds should be 111 arun 400 112 ddd 300 113 ttt 100
What are the different normalization forms?
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)