这是精心收集的精品经典资料，值得下载保存阅读！

c语言操作mysql数据库小例子_互帮互助(C language MySQL database operation example _ mutual help)

C language MySQL database operation example _ help Baidu home page | Baidu space | login help home page blog album | personal files | friends

View Article

C language operation MySQL database small example, 2008-07-15 09:30 Author: yds_amber

Database statement

Create database student

Create, table, stu

Id int (4) auto_increment,

SnO varchar (20),

Sname varchar (30)

Primary key (ID)

)

Insert, into, Stu, values (null,,'yds_amber')

C language source file example.c

#include "stdio.h""

#include "unistd.h""

#include "stdlib.h""

#include "string.h""

#include "/usr/include/mysql/mysql.h" / * on the can view the previous article.

#define SQL2 "select, sname, from, Stu, where, id =%d"

Int main (int, argc, char, **argv) {

MYSQL *conn;

MYSQL_RES *res;

MYSQL_ROW row;

Int, len, i;

Char *server= "localhost"";

Char *user= "root"";

Char *password= "860925"";

Char *database= "student"";

Char sqlbuf[160];

Char *sql= "select * from stu"";

Char *sql3= "insert, into, Stu, values (null,,'rhl')."";

Char *sql4= "update, Stu, set, sname='yds', where, id=1."";

If (argc = = 2) {

Fprintf (stderr, need, one, parameter, for, select:id, \n\n);

Exit (1);

}

Conn=mysql_init (NULL);

If (... Mysql_real_connect (Conn, server, user, password, database, 0, NULL, 0)) {

Fprintf (stderr,%s\n, mysql_error (conn));

Exit (1);

}

If (mysql_real_query (Conn, SQL, strlen (SQL)) {

Fprintf (stderr,%s\n, mysql_error (conn));

Exit (1);

}

If ((res=mysql_store_result (conn)) {

Fprintf (stderr, "Couldn't, get, result, from,%s\n"",

Mysql_error (conn);

Exit (1);

}

How many columns for return / * * /.

Len=mysql_num_fields (RES);

Printf (number, of, fields,%d\n, returned:, len);

Printf ("number of rows returned:%d\n", "mysql_num_rows" (RES));

While (row=mysql_fetch_row (RES))

{

For (i=0; i

Printf ("%s", row[i]);

Printf ("\n");

}

The release of the result set memory / * * /

Mysql_free_result (RES);

Parameterized query