|
|
|
|
When you plan your queries, you should avoid the use of wildcard keyword * - which means "retrieve any field" - mainly because it may decrease performances, since the engine allocates space for the entire row; use explicit field declaration instead, such as:
SELECT field1, field2 FROM table1
Moreover, consider the row length limit when you handle ordered queries; an apparently painless query like this:
SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id ORDER BY table2.field1
may return error 1540, if the result row length is more than 8096 bytes. |
|
|
|
|
|
|
Submitted By :
Nayan Patel
(Member Since : 5/26/2004 12:23:06 PM)
|
 |
|
|
Job Description :
He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting. |
|
View all (893) submissions by this author
(Birth Date : 7/14/1981 ) |
|
|