</pre>//install unixodbc<p></p><p>download from <a target=_blank href="http://www.unixodbc.org/">點擊打開鏈接</a></p><p>$tar zxvf unixODBC-2.3.0.tar.gz</p><p>$cd unixODBC-2.3.0</p><p>$ cmake -G "Unix Makefiles" -DWITH_UNIXODBC=1</p><p>$make</p><p>$make install</p><p></p><p>//install mysql-connector</p><p>download from <a target=_blank href="http://www.mysql.com/downloads/connector/cpp/1.1.html">點擊打開鏈接</a></p><p>$tar mysql-connector-odbc-5.1.11-src.tar.gz</p><p>$cd mysql-connector-odbc-5.1.11-src</p><p>$./comfigure</p><p>$make</p><p>$make install</p><p></p><p>//odbc.ini (we also can use the file $MYSQL_CONNECTOR_DIR/test/odbc.ini, for example : /home/lee/Downloads/mysql-connector-odbc-5.1.11-src/test/odbc.ini )</p><p>$vi /etc/odbc.ini</p><p></p><pre class="cpp" name="code">[myodbc]
Description = MySQL test database
Trace = Off
TraceFile = stderr
Driver = /home/lee/Downloads/mysql-connector-odbc-5.1.11-src/lib/libmyodbc5.so
SERVER = 127.0.0.1
USER = root
PASSWORD = sbivfh
PORT = 3306
DATABASE = test//save it use :wq
export ODBCINI=/etc/odbc.ini
//test
[root@localhost etc]# isql -v myodbc
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
SQL> show databases;
+-----------------------------------------------------------------+
| Database |
+-----------------------------------------------------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+-----------------------------------------------------------------+#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
#include <stdlib.h>
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
#include <stdio.h>
/* error code:
1 undefined reference to `SQLAllocHandle' ,
You need to ask gcc to link with odbc (-lodbc)
2 error while loading shared libraries: libodbc.so.1: cannot open shared object file: No such file or directory
echo $LD_LIBRARY_PATH
LD_LIBRARY_PATH=/usr/local/lib/
echo $LD_LIBRARY_PATH
export LD_LIBRARY_PATH
3 [unixODBC][Driver Manager]Data source name not found, and no default driver specified (0)
[myodbc]
Description = MySQL test database
Trace = Off
TraceFile = stderr
Driver = /home/lee/Downloads/mysql-connector-odbc-5.1.11-src/lib/libmyodbc5.so
SERVER = 127.0.0.1
USER = root
PASSWORD = sbivfh
PORT = 3306
DATABASE = test
*/
/*
mysql> CREATE TABLE test_table(col1 INT,col2 VARCHAR(40),col3 SMALLINT,col4 TIMESTAMP);
INSERT INTO test_table(col1,col2,col3) VALUES(1,'lee',111);
*/
SQLHENV V_OD_Env; // Handle ODBC environment
long V_OD_erg; // result of functions
SQLHDBC V_OD_hdbc; // Handle connection
SQLHDBC V_OD_hstmt;
char V_OD_stat[10]; // Status SQL
SQLINTEGER V_OD_err,V_OD_rowanz,V_OD_id;
SQLSMALLINT V_OD_mlen,V_OD_colanz;
char V_OD_msg[200],V_OD_buffer[200];
int main()
{
printf("test unix odbc\n");
// 1. allocate Environment handle and register version
V_OD_erg=SQLAllocHandle(SQL_HANDLE_ENV,SQL_NULL_HANDLE,&V_OD_Env);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error AllocHandle\n");
exit(0);
}
V_OD_erg=SQLSetEnvAttr(V_OD_Env, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error SetEnv\n");
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
exit(0);
}
// 2. allocate connection handle, set timeout
V_OD_erg = SQLAllocHandle(SQL_HANDLE_DBC, V_OD_Env, &V_OD_hdbc);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error AllocHDB %d\n",V_OD_erg);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
exit(0);
}
SQLSetConnectAttr(V_OD_hdbc, SQL_LOGIN_TIMEOUT, (SQLPOINTER *)5, 0);
// 3. Connect to the datasource "web"
V_OD_erg = SQLConnect(V_OD_hdbc, (SQLCHAR*) "myodbc", SQL_NTS,
(SQLCHAR*) "root", SQL_NTS,
(SQLCHAR*) "sbivfh", SQL_NTS);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error SQLConnect %d\n",V_OD_erg);
SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, (SQLCHAR*)V_OD_stat, &V_OD_err, (SQLCHAR*)V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
exit(0);
}
printf("Connected !\n");
V_OD_erg=SQLAllocHandle(SQL_HANDLE_STMT, V_OD_hdbc, &V_OD_hstmt);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Fehler im AllocStatement %d\n",V_OD_erg);
SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, (SQLCHAR*)V_OD_stat,&V_OD_err,(SQLCHAR*)V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
exit(0);
}
// to be continue ...
return 0;
}
/*
[lee@localhost project]$ g++ -g -o odbc_test odbc_test.cc -L/usr/local/lib/ -lodbc
[lee@localhost project]$ ./odbc_test
test unix odbc
Connected !
*/$ vi /etc/sysconfig/iptables
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
~
// add a new line:
<pre class="html" name="code">-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
# service iptables restart
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: iptables-restore: line 11 failed
[FAILED]
// do not care the error!!!