The original text is from: http://www.voidcn.com/article/p-avzfndrz-oy.html
Conceptual Data Model (CDM): expresses the overall logical structure of data, which is independent of any software
Month: September 2021
SQLite: Add a comment to the table and columns?
In MySQL Workbench, you can add comments to tables and columns in the MySQL database.
Does Sqlite support adding comments to tables and columns?
In addition, the Unsupported SQL wiki pa
SQLITE FTS example does not work
I have downloaded the latest SQLite 3.7.15.2 shell (Win32) and tried to execute one of the FTS exactly as written in http://sqlite.org/fts3.html#section_3 Example
— Virtual table declaration
How do I scroll to the last line of the SQLITE model in the QTableView?
I have a Sqlite model with a few thousand rows connected to a QTableView. I can view the rows in the QTableView, but when I scroll to the bottom of the QTableView, I can only reach the first few hu
Name and Comment interchange in PowerDesigner
Reproduced from: http://blog.csdn.net/xuxile/article/details/49817385
Execution method: Open PDM – Tools – Execute Commands – Run Script
Vb script code:
Add a code display in the table display in PowerDesigner
1.”Tools”->”Display Preferences…”
2. Select “Table” and click “Advanced”
3. Select “Columns”, Click the search icon to the right of “List columns”
4. Select “Code”, move it to the top, and click “OK”. Don’t forget to click “OK” on the other parent pages.
iPad – uinavigationController: Title Jump Adjustment Movies
I have an ipad application, and I want to hide and show a list of categories (a bit like a small view in a split view controller), and a main view containing a UiNavigationController stack.
I
iPad – How do I display an action table in Popover?
I have a split view controller with a table view controller on the left. When I click the detail disclosure button of a table cell, how do I display the action in a pop-up window surface? try th
SQLITE tuple comparison
Try to do the same thing as this question, but this time in sqlite. In my current application, I need to be able to execute this type of query:
SELECT First, Last, Score
FROM mytable
WHERE
(
PowerDesigner appears in the process of generating a script appears on a Constraint Name Uniqueness Reference solution
An error occurred as shown below:
The reason for the problem: the constraint name was repeated during the script generation process
Solution:
1. Double-click error
2. Select Integrity
4. Modify the constraint name in Constraint name Save the name and confirm