| |

VerySource

 Forgot password?
 Register
Search
View: 2582|Reply: 6

The difference between sentences

[Copy link]

1

Threads

1

Posts

2.00

Credits

Newbie

Rank: 1

Credits
2.00

 China

Post time: 2020-10-17 13:30:02
| Show all posts |Read mode
BROW; LIST; SELECT; these three commands can query the desired number, what is the difference between them? Thank you
Reply

Use magic Report

0

Threads

32

Posts

23.00

Credits

Newbie

Rank: 1

Credits
23.00

 China

Post time: 2020-10-17 15:30:01
| Show all posts
Look carefully at these three commands in the help.

In the real program Browse and List are almost useless.
Reply

Use magic Report

0

Threads

114

Posts

69.00

Credits

Newbie

Rank: 1

Credits
69.00

 China

Post time: 2020-10-17 16:00:01
| Show all posts
Query statements generally use SELECT
Reply

Use magic Report

0

Threads

88

Posts

55.00

Credits

Newbie

Rank: 1

Credits
55.00

 China

Post time: 2020-10-17 16:15:01
| Show all posts
SELECT is a standard sql statement used more
Reply

Use magic Report

0

Threads

18

Posts

17.00

Credits

Newbie

Rank: 1

Credits
17.00

 Singapore

Post time: 2020-10-17 17:45:01
| Show all posts
Browser can open a browsing data table window for you. It has its own output window, which is more difficult to control, so most
At the time, Developer is mainly used to view data in the development environment and use it to catch errors. Although it provides a lot of
But the emergence of GRID limits the use of BROWSER to this.

List has more functions. As mentioned above, it is rarely used in the program, but List is an excellent output to file
Tools, you can clearly see the current running environment, memory variables, database content, List Database can be listed
The whole thing in DBC.

As for Select, it is the standard selection statement of T-SQL, which is essentially different from Browser and List. It focuses on data processing.
Browser is the container, List is the environmental tool, and Select is the management data.
Reply

Use magic Report

1

Threads

19

Posts

14.00

Credits

Newbie

Rank: 1

Credits
14.00

 China

Post time: 2020-10-17 18:15:01
| Show all posts
Learn SQL, it's very useful, the other two are basically unnecessary
Reply

Use magic Report

0

Threads

1

Posts

2.00

Credits

Newbie

Rank: 1

Credits
2.00

 China

Post time: 2020-10-17 18:30:01
| Show all posts
The two you mentioned in T-SQL are almost unused. The most commonly used is Select. In T-SQL, it is very useful. It can be used to assign values ​​to variables and can also be used for queries. Basic operation. So I strongly recommend that you don't dig out those useless sentences, know that there is a lot of knowledge, you can't understand everything, learn how to choose!
Like it!
Reply

Use magic Report

You have to log in before you can reply Login | Register

Points Rules

Contact us|Archive|Mobile|CopyRight © 2008-2023|verysource.com ( 京ICP备17048824号-1 )

Quick Reply To Top Return to the list