In Linux, Eclipse uses OCCI to connect to Oracle

In Linux, you can use occi to connect to oracle without installing the client. 1. Assume that you have successfully installed the oracle10g and ipvsec ++ environments. 2. Replace quot; opt

In Linux, you can use occi to connect to oracle without installing the client. 1. Assume that you have successfully installed the oracle10g and Eclipse C ++ environments. 2. Replace quot; opt

Use occi to connect to Oracle in Linux without installing a client
1. Assume that you have successfully installed the oracle10g and Eclipse C ++ environments.
2. Replace libocci. so.10.1 and libocci10.a in the "opt/.../db_1/lib" path. (First download the library required by occi, from which you can download the required two files)

3. edit/etc/ld. so. conf and enter/opt.../db_1/lib in the last line.
4. Run ldconfig

5.
For example
// Oracle. h (header file)

# Include
# Include
# Include
# Include
# Include
# Include
# Include
# Include
# Include
# Include
Using namespace oracle: occi;
Class dbAccessor
{
Public:
DbAccessor ();
~ DbAccessor ();
Int get_dbstat ();
Bool Connect_DB ();
Void Disconn_DB ();
Bool ExecuteUpdate (const char * SQL );
ResultSet * ExecuteQuery (const char * SQL );
Void ClearQuery (ResultSet * set );
Void Init (const char * dbName, const char * dbUser, const char * dbPass );
Void SetDate (unsigned int paramIndex, time_t timeVal );
Private:
Environment * m_env;
Connection * m_conn;
Statement * m_stmt;
Const char * m_szUser;
Const char * m_szPassword;
Const char * m_szDbName;
Bool bConnected;
};

======= Oracle. cpp ====
# Include "oracle. h"
Using namespace std;
Using namespace oracle: occi;
DbAccessor: dbAccessor ()
{
BConnected = false;
M_env = 0;
M_conn = 0;
M_stmt = 0;
}

DbAccessor ::~ DbAccessor ()
{
Disconn_DB ();
}
Void dbAccessor: Init (const char * dbName, const char * dbUser, const char * dbPass)
{
M_szDbName = dbName;
M_szUser = dbUser;
M_szPassword = dbPass;
}
Bool dbAccessor: Connect_DB ()
{
If (m_env = 0)
M_env = Environment: createEnvironment ();
If (m_conn = 0 ){
Try {
M_conn = m_env-> createConnection (m_szUser, m_szPassword, m_szDbName );
} Catch (SQLException & ex ){
M_conn = 0;
Cout <"connect to database failed:" <ex. getMessage () <endl;
Return false;
}
}
Return true;
}
Void dbAccessor: isconn_DB ()
{
If (m_stmt! = 0 & m_conn! = 0)
M_conn-> terminateStatement (m_stmt );
If (m_conn! = 0 & m_env! = 0)
M_env-> terminateConnection (m_conn );
}
// Perform database update operations, including insert, update, and delete operations
Bool dbAccessor: ExecuteUpdate (const char * SQL)
{
Bool update_ OK = true;
If (SQL = 0 ){
Exit (1 );
}
If (m_conn = 0 & m_env = 0 ){
Exit (1 );
}
Try {
M_stmt = m_conn-> createStatement (SQL );
} Catch (SQLException & ex ){
M_stmt = NULL;
Cout <"ExecuteUpdate failed:" <ex. getMessage () <endl;
Exit (1 );
}
Update_ OK = m_stmt-> executeUpdate ();

Return update_ OK;
}
// Execute the database query operation, that is, the select Operation
ResultSet * dbAccessor: ExecuteQuery (const char * SQL)
{
ResultSet * set = 0;
If (SQL = 0 ){
Exit (1 );
}
If (m_conn = 0 & m_env = 0 ){
Exit (1 );
}
Try {
M_stmt = m_conn-> createStatement (SQL );
} Catch (SQLException & ex ){
M_stmt = NULL;
Cout <"ExecuteQuery failed:" <ex. getMessage () <endl;
Exit (1 );
}
Set = m_stmt-> executeQuery ();
Return set;
}

Void dbAccessor: ClearQuery (ResultSet * set)
{
If (m_stmt = 0 ){
Exit (1 );
}
If (set = 0 ){
Exit (1 );
}
M_stmt-> closeResultSet (set );
}
Void dbAccessor: SetDate (unsigned int paramIndex, time_t timeVal)
{
Cout < M_stmt = m_conn-> createStatement ();
Assert (m_stmt! = NULL );
Tm * timeStruct = localtime (& timeVal );
Date date (m_env,
TimeStruct-> maid + 1900,
TimeStruct-> tm_mon + 1,
TimeStruct-> tm_mday,
TimeStruct-> tm_hour,
TimeStruct-> tm_min,
(TimeStruct-> tm_sec = 60 )? 0: timeStruct-> tm_sec );

M_stmt-> setDate (paramIndex, date );
}