+++ /dev/null
-#include <string.h>
-#include <stdio.h>
-
-#include <mysql/mysql.h>
-
-#define STRING_SIZE 50
-
-#define SELECT_SAMPLE "SELECT xx, yy, zz, tt FROM anna_db_test"
-
-#define MAXCOLUMN 4
-
-MYSQL* mysql;
-MYSQL_STMT *stmt;
-MYSQL_BIND bind[MAXCOLUMN];
-MYSQL_RES *prepare_meta_result;
-MYSQL_TIME ts;
-unsigned long length[MAXCOLUMN];
-int param_count, column_count, row_count;
-float float_data;
-int int_data;
-char str_data[STRING_SIZE];
-my_bool is_null[MAXCOLUMN];
-
-/*
- * From http://dev.mysql.com/doc/refman/4.1/en/mysql-stmt-fetch.html
- */
-int main (int argc, const char** argv)
-{
- if ((mysql = mysql_init (NULL)) == NULL)
- exit (-12);
-
- if (mysql_real_connect (mysql, NULL, "sdp", "sdp", "test", 0, NULL, 0L) == NULL) {
- fprintf(stderr, " mysql_stmt_prepare(), SELECT failed\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
- /* Prepare a SELECT query to fetch data from test_table */
- stmt = mysql_stmt_init(mysql);
- if (!stmt)
- {
- fprintf(stderr, " mysql_stmt_init(), out of memory\n");
- exit(0);
- }
-
- if (mysql_stmt_prepare(stmt, SELECT_SAMPLE, strlen(SELECT_SAMPLE)))
- {
- fprintf(stderr, " mysql_stmt_prepare(), SELECT failed\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
- fprintf(stdout, " prepare, SELECT successful\n");
-
- /* Get the parameter count from the statement */
- param_count= mysql_stmt_param_count(stmt);
- fprintf(stdout, " total parameters in SELECT: %d\n", param_count);
-
- if (param_count != 0) /* validate parameter count */
- {
- fprintf(stderr, " invalid parameter count returned by MySQL\n");
- exit(0);
- }
-
- /* Fetch result set meta information */
- prepare_meta_result = mysql_stmt_result_metadata(stmt);
- if (!prepare_meta_result)
- {
- fprintf(stderr," mysql_stmt_result_metadata(), returned no meta information\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
- /* Get total columns in the query */
- column_count= mysql_num_fields(prepare_meta_result);
- fprintf(stdout, " total columns in SELECT statement: %d\n", column_count);
-
- if (column_count != MAXCOLUMN) /* validate column count */
- {
- fprintf(stderr, " invalid column count returned by MySQL\n");
- exit(0);
- }
-
- /* Execute the SELECT query */
- if (mysql_stmt_execute(stmt))
- {
- fprintf(stderr, " mysql_stmt_execute(), failed\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
- /* Bind the result buffers for all 4 columns before fetching them */
-
- memset(bind, 0, sizeof(bind));
-
- /* INTEGER COLUMN */
- bind[0].buffer_type= MYSQL_TYPE_LONG;
- bind[0].buffer= (char *)&int_data;
- bind[0].is_null= &is_null[0];
- bind[0].length= &length[0];
-
- /* STRING COLUMN */
- bind[1].buffer_type= MYSQL_TYPE_STRING;
- bind[1].buffer= (char *)str_data;
- bind[1].buffer_length= STRING_SIZE;
- bind[1].is_null= &is_null[1];
- bind[1].length= &length[1];
-
- /* SMALLINT COLUMN */
- bind[2].buffer_type= MYSQL_TYPE_FLOAT;
- bind[2].buffer= (char *)&float_data;
- bind[2].is_null= &is_null[2];
- bind[2].length= &length[2];
-
- /* TIMESTAMP COLUMN */
- bind[3].buffer_type= MYSQL_TYPE_TIMESTAMP;
- bind[3].buffer= (char *)&ts;
- bind[3].is_null= &is_null[3];
- bind[3].length= &length[3];
-
- /* Bind the result buffers */
- if (mysql_stmt_bind_result(stmt, bind))
- {
- fprintf(stderr, " mysql_stmt_bind_result() failed\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
- /* Now buffer all results to client (optional step) */
- if (mysql_stmt_store_result(stmt))
- {
- fprintf(stderr, " mysql_stmt_store_result() failed\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
- /* Fetch all rows */
- row_count= 0;
- fprintf(stdout, "Fetching results ...\n");
- while (!mysql_stmt_fetch(stmt))
- {
- row_count++;
- fprintf(stdout, " row %d\n", row_count);
-
- /* column 1 */
- fprintf(stdout, " column1 (integer) : ");
- if (is_null[0])
- fprintf(stdout, " NULL\n");
- else
- fprintf(stdout, " %d(%ld)\n", int_data, length[0]);
-
- /* column 2 */
- fprintf(stdout, " column2 (string) : ");
- if (is_null[1])
- fprintf(stdout, " NULL\n");
- else
- fprintf(stdout, " %s(%ld)\n", str_data, length[1]);
-
- /* column 3 */
- fprintf(stdout, " column3 (float) : ");
- if (is_null[2])
- fprintf(stdout, " NULL\n");
- else
- fprintf(stdout, " %f(%ld)\n", float_data, length[2]);
-
- /* column 4 */
- fprintf(stdout, " column4 (timestamp): ");
- if (is_null[3])
- fprintf(stdout, " NULL\n");
- else
- fprintf(stdout, " %04d-%02d-%02d %02d:%02d:%02d (%ld)\n",
- ts.year, ts.month, ts.day,
- ts.hour, ts.minute, ts.second,
- length[3]);
- fprintf(stdout, "\n");
- }
-
- /* Free the prepared result metadata */
- mysql_free_result(prepare_meta_result);
-
- /* Close the statement */
- if (mysql_stmt_close(stmt))
- {
- fprintf(stderr, " failed while closing the statement\n");
- fprintf(stderr, " %s\n", mysql_stmt_error(stmt));
- exit(0);
- }
-
-}