156 lines
6.1 KiB
C
156 lines
6.1 KiB
C
/*
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测试标识符大小的适配
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test: SQLGetTypeInfo()函数,获取int数据类型的详细属性其typename应该显示为大写的INT4
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sql.h>
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#include <sqlext.h>
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#include <sqltypes.h>
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SQLCHAR typeName[200],prefix[200],suffix[200],localName[200];
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SQLINTEGER dataType = 0;
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SQLINTEGER columnSize = 0;
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SQLINTEGER minScale = 0;
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SQLINTEGER maxScale = 0;
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SQLINTEGER radix = 0;
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SQLLEN cbTypeName = 0;
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SQLLEN cbDataType = 0;
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SQLLEN cbColumnSize = 0;
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SQLLEN cbPrefix = 0;
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SQLLEN cbSuffix = 0;
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SQLLEN cbMinScale = 0;
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SQLLEN cbMaxScale = 0;
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SQLLEN cbRadix = 0;
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SQLLEN cbLocalName = 0;
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int main( )
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{
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SQLHENV hEnv = SQL_NULL_HENV;
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SQLHDBC hDbc = SQL_NULL_HDBC;
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SQLHSTMT hStmt = SQL_NULL_HSTMT;
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SQLRETURN rc = SQL_SUCCESS;
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SQLINTEGER RETCODE = 0;
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(void) printf ("**** Entering CLIP06.\n\n");
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/*****************************************************************/
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/* Allocate environment handle */
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/*****************************************************************/
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RETCODE = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &hEnv);
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if (!SQL_SUCCEEDED(RETCODE))
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goto dberror;
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SQLSetEnvAttr(hEnv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
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/*****************************************************************/
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/* Allocate connection handle to DSN */
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/*****************************************************************/
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RETCODE = SQLAllocHandle(SQL_HANDLE_DBC, hEnv, &hDbc);
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if( !SQL_SUCCEEDED(RETCODE) ) // Could not get a Connect Handle
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goto dberror;
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/*****************************************************************/
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/* CONNECT TO data source (STLEC1) */
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/*****************************************************************/
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RETCODE = SQLConnect(hDbc, // Connect handle
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(SQLCHAR *)"gaussdb", // DSN
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SQL_NTS, // DSN is nul-terminated
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NULL, // Null UID
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0 ,
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NULL, // Null Auth string
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0);
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if( !SQL_SUCCEEDED(RETCODE) && !SQL_SUCCEEDED(RETCODE)) // Connect failed
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goto dberror;
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/*****************************************************************/
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/* Retrieve SQL data types from DSN */
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/*****************************************************************/
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// local variables to Bind to retrieve TYPE_NAME, DATA_TYPE,
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// COLUMN_SIZE and NULLABLE
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/*****************************************************************/
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/* Allocate statement handle */
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/*****************************************************************/
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rc = SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt);
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if (!SQL_SUCCEEDED(rc))
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goto exit;
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/*****************************************************************/
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/* Retrieve native SQL types from DSN */
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/*****************************************************************/
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rc = SQLGetTypeInfo (hStmt,SQL_INTEGER);
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if (!SQL_SUCCEEDED(rc))
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goto exit;
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rc = SQLBindCol(hStmt,1,SQL_C_CHAR, (SQLPOINTER)typeName,sizeof(typeName),&cbTypeName);
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rc = SQLBindCol(hStmt,2,SQL_C_ULONG, (SQLPOINTER)&dataType,0,&cbDataType);
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rc = SQLBindCol(hStmt,3,SQL_C_ULONG, (SQLPOINTER)&columnSize,0,&cbColumnSize);
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rc = SQLBindCol(hStmt,4,SQL_C_CHAR, (SQLPOINTER)prefix,sizeof(prefix),&cbPrefix);
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rc = SQLBindCol(hStmt,5,SQL_C_CHAR, (SQLPOINTER)suffix,sizeof(suffix),&cbSuffix);
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rc = SQLBindCol(hStmt,13,SQL_C_CHAR, (SQLPOINTER)localName,sizeof(localName),&cbLocalName);
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rc = SQLBindCol(hStmt,14,SQL_C_SSHORT, (SQLPOINTER)&minScale,0,&cbMinScale);
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rc = SQLBindCol(hStmt,15,SQL_C_SSHORT, (SQLPOINTER)&maxScale,0,&cbMaxScale);
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rc = SQLBindCol(hStmt,18,SQL_C_ULONG, (SQLPOINTER)&radix,sizeof(radix),&cbRadix);
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if (!SQL_SUCCEEDED(rc))
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goto exit;
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rc = SQLFetch(hStmt);
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while(rc != SQL_NO_DATA)
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{
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printf("TYPENAME = %s \n",typeName);
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printf("DATA_TYPE = %d SQL_TINYINT=%d \n",dataType,SQL_TINYINT);
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printf("COLUMN_SIZE = %d \n",columnSize);
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printf("MINIMUM_SCALE = %d \n",minScale);
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printf("MAXIMUM_SCALE = %d \n",maxScale);
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printf("NUM_PREC_RADIX = %d \n",radix);
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printf("LOCAL_TYPE_NAME = %s \n",localName);
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if(suffix)
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{
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printf("LITERAL_PREFIX = %s \n",prefix);
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}
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if(prefix)
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{
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printf("LITERAL_SUFFIX = %s \n",suffix);
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}
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rc = SQLFetch(hStmt);
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};
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if (!SQL_SUCCEEDED(rc))
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goto exit;
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/*****************************************************************/
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/* Free statement handle */
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/*****************************************************************/
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rc = SQLFreeHandle(SQL_HANDLE_STMT, hStmt);
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if (!SQL_SUCCEEDED(RETCODE)) // An advertised API failed
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goto dberror;
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/*****************************************************************/
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/* DISCONNECT from data source */
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/*****************************************************************/
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RETCODE = SQLDisconnect(hDbc);
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if (!SQL_SUCCEEDED(RETCODE))
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goto dberror;
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/*****************************************************************/
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/* Deallocate connection handle */
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/*****************************************************************/
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RETCODE = SQLFreeHandle(SQL_HANDLE_DBC, hDbc);
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if (!SQL_SUCCEEDED(RETCODE))
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goto dberror;
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/*****************************************************************/
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/* Free environment handle */
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/*****************************************************************/
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RETCODE = SQLFreeHandle(SQL_HANDLE_ENV, hEnv);
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if (SQL_SUCCEEDED(RETCODE))
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goto exit;
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return 0;
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dberror:
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RETCODE=12;
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exit:
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(void) printf ("**** Exiting CLIP06.\n\n");
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return(RETCODE);
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}
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