中财网刑警队立案了什么后果:SQLAPI Library
来源：百度文库 编辑：中财网 时间：2024/05/09 07:50:38
Connecting to databases
To connect to a database you should create a connection object and then connect it.
For example, let's connect to SQL Server database Demo as user Guest with a password May and then disconnect from it.
Step 1. Creating a connection object.
A connection object is represented by SAConnection class.
SAConnection con;
The line above creates a connection object con.
If you want to define the connection con as a connection to SQL Server database before calling SAConnection::Connect method useSAConnection::setClient method:
con.setClient( SA_SQLServer_Client );
Step 2. Connecting to a database.
After the connection is created we need to connect it using SAConnection::Connect method.
con.Connect( "Demo", "Guest", "May", SA_SQLServer_Client );
If you have used SAConnection::setClient method earlier you can call SAConnection::Connect method with skipping the last parameter:
con.Connect( "Demo", "Guest", "May" );
Step 3. Disconnecting from a database.
You can disconnect your connection object at any time with a call to the SAConnection::Disconnect method:
con.Disconnect();
It is safe to skip calling SAConnection::Disconnect method explicitly. Destructor SAConnection::~SAConnection will correctly close the connection if you didn't call SAConnection::Disconnect method before.
Problems and Questions
If you haven't found the answer to your questions or have some problems on using the Library, please, send e-mail to howto@sqlapi.com.