?? t0005.c
字號:
/* FreeTDS - Library of routines accessing Sybase and Microsoft databases * Copyright (C) 1998-1999 Brian Bruns * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */#include <stdio.h>#include <tds.h>static char software_version[] = "$Id: t0005.c,v 1.2 2002/08/29 09:54:54 freddy77 Exp $";static void *no_unused_var_warn[] = {software_version, no_unused_var_warn};int run_query(TDSSOCKET *tds, char *query);char *value_as_string(TDSSOCKET *tds, int col_idx);int main(){ TDSLOGIN *login; TDSSOCKET *tds; int verbose = 0; int rc; int i; char *len200 = "01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"; char large_sql[1000]; fprintf(stdout, "%s: Test large (>512 bytes) replies\n", __FILE__); rc = try_tds_login(&login, &tds, __FILE__, verbose); if (rc != TDS_SUCCEED) { fprintf(stderr, "try_tds_login() failed\n"); return 1; } /* do not test error, remove always table */ rc = run_query(tds, "DROP TABLE #test_table"); rc = run_query(tds, "CREATE TABLE #test_table (id int, name varchar(255))"); if (rc != TDS_SUCCEED) { return 1; } sprintf(large_sql, "INSERT #test_table (id, name) VALUES (0, 'A%s')", len200); rc = run_query(tds, large_sql); if (rc != TDS_SUCCEED) { return 1; } sprintf(large_sql, "INSERT #test_table (id, name) VALUES (1, 'B%s')", len200); rc = run_query(tds, large_sql); if (rc != TDS_SUCCEED) { return 1; } sprintf(large_sql, "INSERT #test_table (id, name) VALUES (2, 'C%s')", len200); rc = run_query(tds, large_sql); if (rc != TDS_SUCCEED) { return 1; } /* * The heart of the test */ rc = tds_submit_query(tds, "SELECT * FROM #test_table"); while ((rc=tds_process_result_tokens(tds))==TDS_SUCCEED) { while ((rc=tds_process_row_tokens(tds))==TDS_SUCCEED) { for (i=0; i<tds->res_info->num_cols; i++) { if (verbose) { printf("col %i is %s\n", i, value_as_string(tds, i)); } } } if (rc == TDS_FAIL) { fprintf(stderr, "tds_process_row_tokens() returned TDS_FAIL\n"); return 1; } else if (rc != TDS_NO_MORE_ROWS) { fprintf(stderr, "tds_process_row_tokens() unexpected return\n"); return 1; } } if (rc == TDS_FAIL) { fprintf(stderr, "tds_process_result_tokens() returned TDS_FAIL for SELECT\n"); return 1; } else if (rc != TDS_NO_MORE_RESULTS) { fprintf(stderr, "tds_process_result_tokens() unexpected return\n"); } /* do not test error, remove always table */ rc = run_query(tds, "DROP TABLE #test_table"); try_tds_logout(login, tds, verbose); return 0;}/* Run query for which there should be no return results */int run_query(TDSSOCKET *tds, char *query){ int rc; rc = tds_submit_query(tds, query); if (rc != TDS_SUCCEED) { fprintf(stderr, "tds_submit_query() failed for query '%s'\n", query); return TDS_FAIL; } while ((rc=tds_process_result_tokens(tds))==TDS_SUCCEED) { if (tds->res_info->rows_exist) { fprintf(stderr, "Error: query should not return results\n"); return TDS_FAIL; } } if (rc == TDS_FAIL) { /* probably okay - DROP TABLE might cause this */ /* fprintf(stderr, "tds_process_result_tokens() returned TDS_FAIL for '%s'\n", query); */ } else if (rc != TDS_NO_MORE_RESULTS) { fprintf(stderr, "tds_process_result_tokens() unexpected return\n"); return TDS_FAIL; } return TDS_SUCCEED;}char *value_as_string( TDSSOCKET *tds, int col_idx){ static char result[256]; const int type = tds->res_info->columns[col_idx]->column_type; const char *row = tds->res_info->current_row; const int offset = tds->res_info->columns[col_idx]->column_offset; const void *value = (row+offset); switch(type) { case SYBVARCHAR: strncpy(result, (char *)value, sizeof(result)-1); result[sizeof(result)-1] = '\0'; break; case SYBINT4: sprintf(result, "%d", *(int *)value); break; default: sprintf(result, "Unexpected column_type %d", type); break; } return result;}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -