https://github.com/kezhengjie/mysql_util

https://github.com/kezhengjie/mysql_util

Last synced: 6 days ago
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• Host: GitHub
• URL: https://github.com/kezhengjie/mysql_util
• Owner: kezhengjie
• License: mit
• Created: 2021-08-27T05:51:27.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-08-27T06:25:44.000Z (over 3 years ago)
• Last Synced: 2024-12-25T03:22:22.517Z (10 days ago)
• Language: C
• Size: 1.22 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# mysql_util

**a mysql util based on c mysql lib**

## usage

### 1.connect to mysql

```

const char *user = "user";

const char *pass = "password";

const char *host = "host";

const char *db_name = "db_name";

const int port = port;

mysql_util mysql_util(user, pass, host, port, db_name);

// call is_connected() to know whether the mysql is connected or not

if (!mysql_util.is_connected()){

	return 1;

}

```

### 2.Query SQL

```

mysql_result *result = m->query("select id,name from user");

// return nullptr if error occurs.

if(result == nullptr){

	return 1;

}else

{

	while (result->next())

	{

		// directly get row

		const char *id = result->get(0);

		

		// copy row to char*

		char name[256];

		result->get(1, name);

	}

}

```

### 3.Execute SQL

```

int num = m->exec("insert into user values (255,'jack')");

// return -1 if there's an error on query.

if (num == -1)

{

	char err_msg[256];

	m->last_error(err_msg);

	println(err_msg);

	return 1;

}else //return affected nums if success.

{

	std::cout << "num affected " << num << std::endl;

}

```

## look src/cmd/main.cpp for full demo;