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Resolved Open VSQLiteDatabase

  1. Beatrix Willius
    Beatrix Willius
  2. as SQLite DB Server
  3. Tuesday, June 16 2020, 07:50 AM
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Continuing the discussion from https://www.valentina-db.com/de/discussions/7458-transactions-committing-to-vsqlite .

I found my problem and - yes - I was totally stupid. Ahem, I had assumed that CreateDatabaseFileEx() simply opens a database if it already exists. But it makes a new database. However, I can't figure out how to open a database.



db.Host = "localhost"

db.UserName = "sa"

db.Password = "sa"

db.Port = 15532

Connected = db.Connect()



if Connected then

 db.databaseName = "vsqlitetest.sqlite"

 connected = db.OpenDataBaseFile

  if not Connected then Connected = db.CreateDatabaseFileEx()

end if


If the database already exists then an OpenDataBaseFile doesn't open the database. In the attached screenshot you can see that isOpen = false.

How do I open a VSQLiteDatabase?
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Bildschirmfoto 2020-06-16 um 09.43.07.png Bildschirmfoto 2020-06-16 um 09.43.07.png
  1. ADK_V4RB_XOJO
  2. SOLVED!
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Responses (6)
Beatrix Willius
Beatrix Willius Accepted Answer
Thanks, guys! Got everything working now. Please update your example.
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 1
Ivan Smahin
Ivan Smahin Accepted Answer
Please, check our example:

To always create the db you should do:


Connected = db.Connect()



if Connected then

  // only NOW we specify db_name, and do create on remote Valentina SQLite Server. Must be ADMIN.

  db.databaseName = "vsqlitetest.sqlite"

  Connected = db.CreateDatabaseFileEx()  // assign again into the same variable, will be TRUE if db was created under VServer, so we can use DB.

end if

...

// Db was created.

...


If you want to open db you should set db.databaseName property before db.Connect() call:



db.DatabaseName = "vsqlitetest.sqlite"

Connected = db.Connect()

...

// Db was opened.

...


In case if db can not be opened Connected will be false.
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 2
Ivan Smahin
Ivan Smahin Accepted Answer
Actually, OpenDataBaseFile() is an alias to Connect() for local dbs. It cannot be used with remote Valentina SQLite Server.
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 3
Ivan Smahin
Ivan Smahin Accepted Answer 


if( gClient ) then

  db.Host = "localhost"

  db.UserName = "sa"

  db.Password = "sa"

  db.Port = 15532 // optional. You can change port for SQLite DB connections in the VServer.ini file.

  

  '

  ' Create or Open db:

  '

  

  '' Create:

  'Connected = db.Connect()

  'if Connected then

  '// only NOW we specify db_name, and do create on remote Valentina SQLite Server. Must be ADMIN.

  'db.databaseName = "vsqlitetest.sqlite"

  'Connected = db.CreateDatabaseFileEx()  // assign again into the same variable, will be TRUE if db was created under VServer, so we can use DB.

  'end if

  

  '' Open:

  'db.DatabaseName = "vsqlitetest.sqlite"

  'Connected = db.Connect()

  

  ' Create if not exists:

  db.DatabaseName = "vsqlitetest.sqlite"

  Connected = db.Connect()

  if not Connected then

    Connected = db.CreateDatabaseFileEx()  // assign again into the same variable, will be TRUE if db was created under VServer, so we can use DB.

  end if

  ...
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 4
Ruslan Zasukhin
Ruslan Zasukhin Accepted Answer
V4RB Examples improved in 10.4.6
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 5
Beatrix Willius
Beatrix Willius Accepted Answer
Thanks!
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  1. more than a month ago
  2. as SQLite DB Server
  3. # 6
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