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first commit for openGauss connect odbc code

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This commit is contained in:
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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179
odbc-test-gauss/odbc_smalldatetime_07_SQLProcedureColumns.c Normal file
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/*
测试odbc支持smalldatetime类型
test: SQLProcedureColumns()函数,测试通过odbc取出存储过程入参FIRSTID为smalldatetime的列
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
int main( )
{
SQLHENV hEnv = SQL_NULL_HENV;
SQLHDBC hDbc = SQL_NULL_HDBC;
SQLHSTMT hStmt = SQL_NULL_HSTMT;
SQLRETURN rc = SQL_SUCCESS;
SQLINTEGER RETCODE = 0;
SQLCHAR typename[200];
SQLCHAR schema[200] = "PUBLIC";
SQLCHAR table[200] = "ODBC_SMALLDATETIME_07";
SQLCHAR col[200] = "FIRSTTM";
SQLSMALLINT dateType = 0;
SQLSMALLINT sqlDateType = 0;
char procedure_name [200];
SQLINTEGER buffLen = 0;
SQLINTEGER columnSize = 0;
SQLINTEGER octLen = 0;
SQLLEN cbValue3;
SQLLEN cbDateType = 0;
SQLLEN cbSqlDateType = 0;
SQLLEN cbBuffLen = 0;
SQLLEN cbTypeName = 0;
SQLLEN cbColSize = 0;
SQLLEN cbOctLen = 0;
(void) printf ("**** Entering CLIP06.\n\n");
/*****************************************************************/
/* Allocate environment handle */
/*****************************************************************/
RETCODE = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv);
if (!SQL_SUCCEEDED(RETCODE))
{
printf("SQLAllocHandle ENV error!\n");
goto dberror;
}
SQLSetEnvAttr(hEnv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
/*****************************************************************/
/* Allocate connection handle to DSN */
/*****************************************************************/
RETCODE = SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc);
if( !SQL_SUCCEEDED(RETCODE) ) // Could not get a Connect Handle
{
printf("SQLAllocHandle dbc error!\n");
goto dberror;
}
/*****************************************************************/
/* CONNECT TO data source (STLEC1) */
/*****************************************************************/
RETCODE = SQLConnect(hDbc, // Connect handle
(SQLCHAR *)"gaussdb", // DSN
SQL_NTS, // DSN is nul-terminated
NULL, // Null UID
0 ,
NULL, // Null Auth string
0);
if( !SQL_SUCCEEDED(RETCODE)) // Connect failed
{
printf("connetct failed!");
goto dberror;
}
/*****************************************************************/
/* Allocate statement handle */
/*****************************************************************/
rc = SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt);
if (!SQL_SUCCEEDED(rc))
{
printf("SQLAllocHandle error!\n");
goto exit;
}
/*****************************************************************/
/* */
/* Retrieve native SQL types from DSN ------------> */
/* */
/* The result set consists of 15 columns. We only bind */
/* serveral we modified for smalldatetime. Note: Need */
/* not bind all columns of result set -- only those required. */
/* */
/*****************************************************************/
rc = SQLExecDirect(hStmt," create or replace function odbc_smalldatetime_07(in firsttm smalldatetime) returns smalldatetime as $$ BEGIN return firsttm;END;$$ LANGUAGE plpgsql;",SQL_NTS);
if (!SQL_SUCCEEDED(rc))
{
printf("create function error!\n");
goto exit;
}
rc = SQLProcedureColumns(hStmt, NULL, 0, schema, sizeof(schema),table, sizeof(table),NULL, sizeof(col));
if (!SQL_SUCCEEDED(rc))
{
printf("SQLProcedureColumns error!\n");
goto exit;
}
rc = SQLBindCol (hStmt, // bind procedure_name
3,
SQL_C_CHAR,
procedure_name,
sizeof(procedure_name),
&cbValue3);
rc = SQLBindCol(hStmt,6,SQL_C_SSHORT, (SQLPOINTER)&dateType,0,&cbDateType);
rc = SQLBindCol(hStmt,7,SQL_C_CHAR, (SQLPOINTER)typename,sizeof(typename),&cbTypeName);
rc = SQLBindCol(hStmt,8,SQL_C_ULONG, (SQLPOINTER)&columnSize,0,&cbColSize);
rc = SQLBindCol(hStmt,9,SQL_C_ULONG, (SQLPOINTER)&buffLen,0,&cbBuffLen);
rc = SQLBindCol(hStmt,15,SQL_C_SSHORT, (SQLPOINTER)&sqlDateType,0,&cbSqlDateType);
rc = SQLBindCol(hStmt,17,SQL_C_ULONG, (SQLPOINTER)&octLen,0,&cbOctLen);
/*****************************************************************/
/* Answer set is available - Fetch rows and print parameters for */
/* all procedures. */
/*****************************************************************/
printf ("**** begin fetch variable.\n");
rc = SQLFetch(hStmt);
while(rc != SQL_NO_DATA)
{
printf("PROCEDURE NAME ----: %s\n",procedure_name);
printf("DATA_TYPE ----: %d SQL_TYPE_TIMESTAMP = %d \n",dateType,SQL_TYPE_TIMESTAMP);
printf("TYPE_NAME ----: %s\n",typename);
printf("COLUMN_SIZE ----: %d\n",columnSize);
printf("SQL_DATA_TYPE ----: %d\n",sqlDateType);
printf("BUFFER_LENGTH ----: %d\n",buffLen);
printf("CHAR_OCTET_LENGTH----: %d\n",buffLen);
rc = SQLFetch(hStmt);
};
/*****************************************************************/
/* Free statement handle */
/*****************************************************************/
RETCODE = SQLFreeHandle(SQL_HANDLE_STMT, hStmt);
if (!SQL_SUCCEEDED(RETCODE)) // An advertised API failed
goto dberror;
/*****************************************************************/
/* DISCONNECT from data source */
/*****************************************************************/
RETCODE = SQLDisconnect(hDbc);
if (!SQL_SUCCEEDED(RETCODE))
goto dberror;
/*****************************************************************/
/* Deallocate connection handle */
/*****************************************************************/
RETCODE = SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
if (!SQL_SUCCEEDED(RETCODE))
goto dberror;
/*****************************************************************/
/* Free environment handle */
/*****************************************************************/
RETCODE = SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
if (!SQL_SUCCEEDED(RETCODE))
goto exit;
return 0;
dberror:
RETCODE=12;
exit:
(void) printf ("**** Exiting CLIP06.\n\n");
return(RETCODE);
}