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Author: Simo

Implement database import and export using PowerDesigner

Get the physical model from the existing database 1. Open PowerDesigner, File –> Model –> Create a new physical data model, model name is self-designed, DBMS select MySQL5.0. 2. Database –> Conn

September 22, 2021By Simo Power Designer database, export, Implementation, import, PowerDesigner, useLeave a Comment

PowerDesigner16.5 Reverse Engineering, export PDM from the remote oracle11g database

Tools used in this article:

1. Remote database Oracle11g

2, powerdesigner16.5

First step:

Enter the model name and select the database Oracle11g

Step 2: Select the cur

September 22, 2021By Simo Power Designer database, Engineering, export, Oracle, Oracle11g, PDM, PowerDesigner, PowerDesigner16.5, remote, ReverseLeave a Comment

RowId in SQLITE3 and Android

I perform an insert operation on the database, and I want to know what the rowid to insert is.

This completes the task:

Uri uri = ContentResolver.insert(url,values); //Make insert
int r

September 22, 2021By Simo Sqlite Android, rowid, SQLITE, SQLITE3Leave a Comment

SQLITE FTS3: Search string in column

Is there a way to search for a specific string in a column?

I want to search for SELECT *from email_fts WHERE email_fts MATCH’ to: “[email protected]” or from: “[email protected]”‘

Thanks in advance ,

<

September 22, 2021By Simo Sqlite search, stringLeave a Comment

iPad – Why does UIALERTCONTROLLER in iOS7 receive NIL values?

Why is it good that UIAlertController in iOS7 needs to be presented but receives nil value when working on iOS8. Maybe I know that is because iOS7 does not support UIAlertController class?

UI

September 22, 2021By Simo Ipad IOS, iOS7, iPad, NIL, UIALERTCONTROLLER, value, whyLeave a Comment

How to design the association between PowerDesigner

How does PowerDesigner design the association between tables
Steps/Methods Find the reference relationship tool in the toolbox:

From area table to province Pull the refere

September 22, 2021By Simo Power Designer between, How, PowerDesigner, set, tableLeave a Comment

When you insert a new record, create a trigger for SQLITE to delete old records.

I have a “log” table in the SQLite database, where I write all the log files.

But I want to pretend that the database becomes more Come bigger-the smartest way to do this is to use the trigge

September 22, 2021By Simo Sqlite create, delete, INSERT, New, old, Record, SQLITE, time, triggerLeave a Comment

How do I create a sequence in SQLITE?

I have created a table in sqlite.
There are two fields: pk_categoryid, category_name.
I want to enter only one value from the user side.
So, how do I create a sequence? If you mean that you w

September 22, 2021By Simo Sqlite How to create, SequenceLeave a Comment

PowerDesigner generates a Mysql band

1. Install PowerDesigner Reference
https://blog.csdn. net/sinat_34104446/article/details/79885141

com.mysql.jdbc.Driver
jdbc:mysql://192.168.0.151:3306/nbspider Test connection to P

September 22, 2021By Simo Power Designer diagram, er, generated, mysql with annotation, PowerDesignerLeave a Comment

iPad – UITEXTVIEW width is greater than 512 does not display text

Whenever I expand UITextView to a size greater than 512, the code is as follows:

textView = [[UITextView alloc ] initWithFrame: CGRectMake(0, 0, 513, 1024)]; It doesn’t display any text anymo

September 22, 2021By Simo Ipad display, greater than, iPad, Text, UITextView, widthLeave a Comment

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