Click here to Skip to main content
16,007,163 members
Home / Discussions / Database
   

Database

 
AnswerRe: n00bish SQL Question Pin
Colin Angus Mackay25-Nov-07 7:26
Colin Angus Mackay25-Nov-07 7:26 
GeneralRe: n00bish SQL Question Pin
sonywar25-Nov-07 14:29
sonywar25-Nov-07 14:29 
AnswerRe: n00bish SQL Question Pin
DQNOK26-Nov-07 6:05
professionalDQNOK26-Nov-07 6:05 
AnswerRe: n00bish SQL Question Pin
TJoe30-Nov-07 2:36
TJoe30-Nov-07 2:36 
QuestionSQL Server 2000 Backup Pin
Ali el25-Nov-07 4:15
Ali el25-Nov-07 4:15 
QuestionSQL 2005 Imports Pin
Vimalsoft(Pty) Ltd25-Nov-07 1:13
professionalVimalsoft(Pty) Ltd25-Nov-07 1:13 
AnswerRe: SQL 2005 Imports Pin
pmarfleet25-Nov-07 3:53
pmarfleet25-Nov-07 3:53 
GeneralRe: SQL 2005 Imports Pin
Vimalsoft(Pty) Ltd25-Nov-07 19:13
professionalVimalsoft(Pty) Ltd25-Nov-07 19:13 
QuestionDate of Birth Pin
Brendan Vogt24-Nov-07 22:08
Brendan Vogt24-Nov-07 22:08 
AnswerRe: Date of Birth Pin
Christian Graus24-Nov-07 23:13
protectorChristian Graus24-Nov-07 23:13 
AnswerRe: Date of Birth Pin
Cristian Amarie26-Nov-07 7:54
Cristian Amarie26-Nov-07 7:54 
AnswerRe: Date of Birth Pin
PIEBALDconsult26-Nov-07 11:42
mvePIEBALDconsult26-Nov-07 11:42 
GeneralRe: Date of Birth Pin
Cristian Amarie26-Nov-07 23:11
Cristian Amarie26-Nov-07 23:11 
QuestionSP with create table Pin
kimo code23-Nov-07 23:42
kimo code23-Nov-07 23:42 
AnswerRe: SP with create table Pin
John-ph24-Nov-07 0:19
John-ph24-Nov-07 0:19 
Question[Message Deleted] Pin
gubba23-Nov-07 21:33
gubba23-Nov-07 21:33 
AnswerRe: generating random numnbers Pin
SVb.net23-Nov-07 21:36
SVb.net23-Nov-07 21:36 
QuestionSelect Top Pin
mehrdadc4823-Nov-07 21:20
mehrdadc4823-Nov-07 21:20 
AnswerRe: Select Top Pin
SVb.net23-Nov-07 21:39
SVb.net23-Nov-07 21:39 
AnswerRe: Select Top Pin
pmarfleet23-Nov-07 22:33
pmarfleet23-Nov-07 22:33 
Questionindex Pin
SVb.net23-Nov-07 21:07
SVb.net23-Nov-07 21:07 
AnswerRe: index Pin
John-ph23-Nov-07 23:45
John-ph23-Nov-07 23:45 
SVb.net wrote:
what's different between index and primarykey?


1. Primary Key Is A UNIQUE Constraint created against the table to uniquely identify each record in the table.
2. A table can have only one PRIMARY KEY constraint.
3. PRIMARY KEY constraint automatically creates Clustered Index against the Column. Physical order of rows is the same as the indexed order of the rows.

1.An Index is a UNIQUE Reference internally created by the Database engine against the Table or View for reference.
2. A table can have 250 Indexes (1 Clustered and 249 Non-Clustered).
3. Physical order of the rows is independent of their indexed order for Non-Clustered Indexes.

- Regards -
   JON

     Life is not measured by the amount of breaths we take, but by the moments that take our breath away.


GeneralRe: index Pin
Xmen Real 24-Nov-07 3:50
professional Xmen Real 24-Nov-07 3:50 
GeneralRe: index Pin
John-ph24-Nov-07 18:17
John-ph24-Nov-07 18:17 
GeneralRe: index Pin
Xmen Real 24-Nov-07 18:32
professional Xmen Real 24-Nov-07 18:32 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.