色婷婷狠狠18禁久久YY,CHINESE性内射高清国产,国产女人18毛片水真多1,国产AV在线观看

linux c語(yǔ)言mysql

Linux系統(tǒng)中的C語(yǔ)言與MySQL的結(jié)合,可以實(shí)現(xiàn)強(qiáng)大的數(shù)據(jù)庫(kù)操作功能。使用MySQL數(shù)據(jù)庫(kù)能夠方便地存儲(chǔ)、管理數(shù)據(jù),而C語(yǔ)言作為一門高效的編程語(yǔ)言,可以實(shí)現(xiàn)各種數(shù)據(jù)處理、邏輯運(yùn)算等操作。

//連接MySQL數(shù)據(jù)庫(kù)
MYSQL mysql;
mysql_init(&mysql);
if(mysql_real_connect(&mysql, "localhost", "root", "password", "database_name", 0, NULL, 0) == NULL) {
printf("Error connecting to database: %s\n", mysql_error(&mysql));
exit(0);
}
//創(chuàng)建表
char *create_table = "CREATE TABLE IF NOT EXISTS users (id INT NOT NULL AUTO_INCREMENT, username VARCHAR(255) NOT NULL, email VARCHAR(255), PRIMARY KEY(id));";
if(mysql_query(&mysql, create_table)) {
printf("Error creating table: %s\n", mysql_error(&mysql));
exit(0);
}
//插入數(shù)據(jù)
char *insert_data = "INSERT INTO users (username, email) VALUES ('user1', 'user1@example.com');";
if(mysql_query(&mysql, insert_data)) {
printf("Error inserting data: %s\n", mysql_error(&mysql));
exit(0);
}
//查詢數(shù)據(jù)
MYSQL_RES *result;
MYSQL_ROW row;
char *select_data = "SELECT * FROM users WHERE id=1;";
if(mysql_query(&mysql, select_data)) {
printf("Error selecting data: %s\n", mysql_error(&mysql));
exit(0);
}
result = mysql_store_result(&mysql);
if(result == NULL) {
printf("Error storing result: %s\n", mysql_error(&mysql));
exit(0);
}
row = mysql_fetch_row(result);
if(row != NULL) {
printf("%s %s\n", row[1], row[2]);
}
//關(guān)閉連接
mysql_close(&mysql);

以上代碼演示了連接MySQL數(shù)據(jù)庫(kù)、創(chuàng)建表、插入數(shù)據(jù)和查詢數(shù)據(jù)的基本操作。在實(shí)際應(yīng)用中,還可以使用C語(yǔ)言和MySQL的API實(shí)現(xiàn)更復(fù)雜的操作和查詢。