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Set up  dynamically   database

Posted on 2014-08-14
Medium Priority
Last Modified: 2014-11-19
I have  asp.net project . What I need
1) Create Data Base dynamically from ASP.NET  application
2) generate connection string  for this database

how to do it  ?
Question by:Yampolka
  • 3
LVL 25

Accepted Solution

chaau earned 2000 total points
ID: 40262370
One of the ways to do so is by using T-SQL. You need to connect to the server in the first place though. Connect to the server as an admin (use 'sa' account, or any other DB Admin account) and connect to the master database. Then, just use CREATE DATABASE command. Please note however, that you need to have a basic idea of the DB server Disk Drives and folders. Perhaps your DB admin has specified that the default data location is for example D:\Data, and the Transaction Log location is D:\Logs. The syntax may look complicated by basically all you need is this:
USE master;
( NAME = Sales_dat,
    FILENAME = 'D:\DATA\saledat.mdf',
    SIZE = 10,
    MAXSIZE = 50,
    FILEGROWTH = 5 )
( NAME = Sales_log,
    FILENAME = 'D:\Logs\salelog.ldf',
    SIZE = 5MB,
    MAXSIZE = 25MB,
    FILEGROWTH = 5MB ) ;

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In fact, according to the link above you can even create the database like this:
USE master;

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The following example creates the database mytest and creates a corresponding primary and transaction log file. Because the statement has no <filespec> items, the primary database file is the size of the model database primary file. The transaction log is set to the larger of these values: 512KB or 25% the size of the primary data file. Because MAXSIZE is not specified, the files can grow to fill all available disk space.
When the database is created you will need to disconnect from the master database. You will have to reconnect to the newly created database. The connection string to this new database will be the same, except for the "Database=" parameter, i.e.:

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Author Comment

ID: 40309147
When I do it from SQL Managemet Studio - I am Fine
But when I do it from asp.net application ,
 I have  CREATE DATABASE permission denied in database 'master'.

Assisted Solution

Yampolka earned 0 total points
ID: 40442643
This could be resolved with  Server Authentication   and admin login

Author Closing Comment

ID: 40451929
Solution could be implemented if
1) DB install server with mixed mode
2) You know Admin Password

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