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105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/* MDB Tools - A library for reading MS Access database file
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* Copyright (C) 2000 Brian Bruns
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "mdbtools.h"
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void read_to_row(MdbTableDef *table, char *sargname);
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int
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main(int argc, char **argv)
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{
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MdbHandle *mdb;
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MdbTableDef *table;
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char *colname, *tabname;
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char *colval;
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int colnum;
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char *sargname = NULL;
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char *updstr = NULL;
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char data[255];
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int len;
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if (argc<4) {
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fprintf(stderr,"Usage: %s <file> <table> <sargs> <updstr>\n",argv[0]);
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exit(1);
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}
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mdb = mdb_open(argv[1], MDB_WRITABLE);
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tabname = argv[2];
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sargname = argv[3];
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updstr = strdup(argv[4]);
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table = mdb_read_table_by_name(mdb, tabname, MDB_TABLE);
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if (table) {
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mdb_read_columns(table);
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mdb_read_indices(table);
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printf("updstr %s\n",updstr);
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colname = strtok(updstr,"=");
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colval = strtok(NULL,"=");
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colnum = mdb_bind_column_by_name(table, colname, data, &len);
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printf("column %d\n", colnum);
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read_to_row(table, sargname);
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printf("current value of %s is %s, changing to %s\n", colname, data, colval);
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len = strlen(colval);
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strcpy(data,colval);
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mdb_update_row(table);
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mdb_free_tabledef(table);
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}
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mdb_close(mdb);
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return 0;
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}
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void read_to_row(MdbTableDef *table, char *sargname)
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{
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static MdbSargNode sarg;
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char *sargcol, *sargop, *sargval;
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unsigned int i;
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MdbColumn *col;
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if (sargname) {
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sargcol = strtok(sargname," ");
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for (i=0;i<table->num_cols;i++) {
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col=g_ptr_array_index(table->columns,i);
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if (!strcasecmp(col->name, (char *)sargcol)) {
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sarg.col = col;
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break;
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}
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}
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sargop = strtok(NULL," ");
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sargval = strtok(NULL," ");
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printf("col %s op %s val %s\n",sargcol,sargop,sargval);
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sarg.op = MDB_EQUAL; /* only support = for now, sorry */
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sarg.value.i = atoi(sargval);
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table->sarg_tree = &sarg;
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// mdb_add_sarg_by_name(table, sargcol, &sarg);
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}
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mdb_rewind_table(table);
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while (mdb_fetch_row(table)) {
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printf("row found at page %d row %d\n",
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table->cur_phys_pg, table->cur_row);
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return;
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}
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}
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