select top 5 * from emp order by newid()
my question is , how this query get executed?
Answers were Sorted based on User's Feedback
Answer / ankita bosamiya
first of all order by clause will be executed that is first
it will be arranged as ascending or descending order and
than first 5 records will be fatched.....
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / anil sharma
newid() function return random row and top 5 return top 5
rows.
So query return top 5 row using random order.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / sanjeev kumar
newid() used with uniqueidentifier data types in a table
and uniqueidentifier datatype is used to insert randomly
new number, so the above query will give top 5 records in
randomly manner.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / praveen n h
SQL server will execute the query in following way...
Select All top 5 rows which are created in the table from
the time it is created.
reason: newid is the key given to each row regardless of
the values that goes into the row of the table.
For example.
if you have created a table temp
and inserted 10 rows, Only fives rows which are created
first will be listed.
| Is This Answer Correct ? | 2 Yes | 6 No |
What is it unwise to create wide clustered index keys?
What is raid? : SQL Server Architecture
How you can find out if an index is useful to the optimizer?
What is a ddl statement?
statement (of account) Receive ID_receive Date_receive Amount_receive TO_receive From_receive Description_receive 1 2010/01/01 500 Bank Ahmed Payment from the account 2 2010/02/01 700 Bank Ahmed Payment from the account Payment ID_payment Date_payment Amount_payment From_payment To_payment Description_payment 1 2010/03/01 1000 Ahmed Sales Sale goods 2 2010/04/01 1500 Ahmed Sales Sale goods How can crate Stored Procedures for the statement (of account) from these tables? I want statement (of account) like this: (in sql 2005) ID_ name description debit account credit account balance
What is a result set object returned by mssql_query()?
Explain triggers in sql?
How to Display, Amount of Disk Activity Generated by Transact-SQL Statements?
What is logshipping and its purpose?
How to list all triggers in the database with sys.triggers in ms sql server?
What do you mean by sql server agent?
What is oltp (online transaction processing)?
Oracle (3259)
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)