Write a C/C++ program that connects to a MySQL server and
checks if the InnoDB plug-in is installed on it. If so, your
program should print the maximum number of concurrent
threads that the InnoDB plug-in can create.
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Answer Posted / sreenivasulu
Requirements
Make sure you have development environment installed such as gcc, mysql development package etc. Following is the list summarize the list of packages to compile program:
mysql: MySQL client programs and shared library
mysqlclient: Backlevel MySQL shared libraries (old libs)
mysql-devel: Files for development of MySQL applications (a must have)
mysql-server: Mysql server itself
gcc, make and other development libs: GNU C compiler
/* Simple C program that connects to MySQL Database server*/
#include <mysql.h>
#include <stdio.h>
main() {
MYSQL *conn;
MYSQL_RES *res;
MYSQL_ROW row;
char *server = "localhost";
char *user = "root";
char *password = "PASSWORD"; /* set me first */
char *database = "mysql";
conn = mysql_init(NULL);
/* Connect to database */
if (!mysql_real_connect(conn, server,
user, password, database, 0, NULL, 0)) {
fprintf(stderr, "%s\n", mysql_error(conn));
exit(1);
}
/* send SQL query */
if (mysql_query(conn, "show tables")) {
fprintf(stderr, "%s\n", mysql_error(conn));
exit(1);
}
res = mysql_use_result(conn);
/* output table name */
printf("MySQL Tables in mysql database:\n");
while ((row = mysql_fetch_row(res)) != NULL)
printf("%s \n", row[0]);
/* close connection */
mysql_free_result(res);
mysql_close(conn);
}
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