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用Visual C++开发数据库应用程序(7)
if (retcode == SQL_SUCCESS ¦¦ retcode == SQL_SUCCESS_WITH_INFO) {
/* Allocate the connection handle. */
retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);
if (retcode == SQL_SUCCESS ¦¦ retcode == SQL_SUCCESS_WITH_INFO) {
/* Call SQLBrowseConnect until it returns a value other than */
/* SQL_NEED_DATA (pass the data source name the first time). */
/* If SQL_NEED_DATA is returned, call GetUserInput (not */
/* shown) to build a dialog from the values in szConnStrOut. */
/* The user-supplied values are returned in szConnStrIn, */
/* which is passed in the next call to SQLBrowseConnect. */
lstrcpy(szConnStrIn, "DSN=Sales"); do {
retcode = SQLBrowseConnect(hdbc, szConnStrIn, SQL_NTS,
szConnStrOut, BRWS_LEN, &cbConnStrOut);
if (retcode == SQL_NEED_DATA)
GetUserInput(szConnStrOut, szConnStrIn);
} while (retcode == SQL_NEED_DATA);
if (retcode == SQL_SUCCESS ¦¦ retcode == SQL_SUCCESS_WITH_INFO){
/* Allocate the statement handle. */
retcod
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