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first commit for openGauss connect odbc code

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lishifu
2020-06-24 16:11:37 +08:00
parent 2a3a17f54e
commit 59eb2808c4
458 changed files with 141117 additions and 75 deletions
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168
odbc-test-gauss/odbc_nvarchar2_01_SQLGetData.c Normal file
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/*
Author:o00231432
����odbc֧��nvarchar2����
test: odbc֧�ִ��������ֶ�������Ϊnvarchar2;SQLGetData��ȡ��nvarchar2�������͵�ֵ
*/
#include <stdio.h>
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
#include <time.h>
SQLHENV V_OD_Env; // Handle ODBC environment
SQLHSTMT V_OD_hstmt;
long V_OD_erg; // result of functions
SQLHDBC V_OD_hdbc; // Handle connection
char V_OD_stat[10]; // Status SQL
SQLINTEGER V_OD_err,V_OD_id,V_ID;
SQLSMALLINT V_OD_mlen,V_OD_colanz;
char V_OD_buffer[200],V_OD_msg[200],schema[200],table[200],type[200],remark[200],V_OD_buffer1[200];
char *buf = "Mike";
int value = 3;
SQLRETURN rc;
SQLLEN V_OD_rowanz;
int main(int argc,char *argv[])
{
/**
ODBC handle
1) SQL_HANDLE_ENV
2) SQL_HANDLE_DBC
3) SQL_HANDLE_STMT
*/
// 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");
return -1;
}
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);
return -1;
}
// 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);
return -1;
}
// 3. Connect to the datasource "web"
V_OD_erg = SQLConnect(V_OD_hdbc, (SQLCHAR*) "gaussdb", SQL_NTS,
(SQLCHAR*) "", SQL_NTS,
(SQLCHAR*) "", 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,
V_OD_stat, &V_OD_err,V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
printf("Connected Successfuly!\n");
//4. allocate statement handle.
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, V_OD_stat,&V_OD_err,V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
//SQLExecDirect
V_OD_erg = SQLExecDirect(V_OD_hstmt,"drop table IF EXISTS odbc_nvarchar2_01",SQL_NTS);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error in drop %d\n",V_OD_erg);
SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, V_OD_stat,&V_OD_err,V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
V_OD_erg = SQLExecDirect(V_OD_hstmt,"create table odbc_nvarchar2_01(name nvarchar2)",SQL_NTS);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error in create %d\n",V_OD_erg);
SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, V_OD_stat,&V_OD_err,V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
SQLExecDirect(V_OD_hstmt,"insert into odbc_nvarchar2_01 values('omom')",SQL_NTS);
//����������¼
SQLExecDirect(V_OD_hstmt,"insert into odbc_nvarchar2_01 values('anan'),('asjdlf'),('jsdl'),('allsl'),('lalls'),('sldf'),('sljdfl'),('oeiowri'),('sldjlaa'),('alsa')",SQL_NTS);
//��ѯ����
V_OD_erg = SQLExecDirect(V_OD_hstmt,"SELECT name FROM odbc_nvarchar2_01 order by name",SQL_NTS);
//�ж��ϴβ�ѯ�Ƿ��ɹ�
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
printf("Error in Select %d\n",V_OD_erg);
SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, V_OD_stat,&V_OD_err,V_OD_msg,100,&V_OD_mlen);
printf("%s (%d)\n",V_OD_msg,V_OD_err);
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
//SQLNumResultCols���ؽ������е�����
V_OD_erg=SQLNumResultCols(V_OD_hstmt,&V_OD_colanz);
if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO))
{
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLDisconnect(V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
printf("SQLNumResultCols ---- Number of Columns %d\n",V_OD_colanz);
//SQLRowCount ���ؽ������е�����
rc=SQLRowCount(V_OD_hstmt,&V_OD_rowanz);
if ((!SQL_SUCCEEDED(rc)))
{
printf("Number of RowCount %d\n",rc);
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLDisconnect(V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return -1;
}
printf("SQLRowCount ----- Number of Rows %d\n",V_OD_rowanz);
SQLBindCol(V_OD_hstmt,1,SQL_C_CHAR, (SQLPOINTER)&V_OD_buffer,150,(SQLLEN * )&V_OD_err);
//SQLFetchȡ������
V_OD_erg=SQLFetch(V_OD_hstmt);
while(V_OD_erg != SQL_NO_DATA)
{
SQLGetData(V_OD_hstmt,1,SQL_C_ULONG,(SQLPOINTER)&V_ID,0,(SQLLEN * )&V_OD_err);
printf("SQLGetData ----name = %s\n",V_OD_buffer);
V_OD_erg=SQLFetch(V_OD_hstmt);
};
SQLFreeHandle(SQL_HANDLE_STMT,V_OD_hstmt);
SQLDisconnect(V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_DBC,V_OD_hdbc);
SQLFreeHandle(SQL_HANDLE_ENV, V_OD_Env);
return(0);
}