C API 函数 mysql_library_init() 更新时间:2024-08-12 23:00:00 mysql_library_init()用于初始化 C API 库。 语法 intmysql_library_init(intargc,char**argv,char**groups) argc和argv参数类似于main()的参数。针对常规(非嵌入式)客户端的应用程序的常见情况,如果服务器没有命令行参数,则argc可能为 0...
CAPI函数 mysql_library_init() 更新时间:2022-02-24 21:38:13 mysql_library_init()用于初始化 C API 库。 语法 intmysql_library_init(intargc,char**argv,char**groups) argc和argv参数类似于main()的参数。针对常规(非嵌入式)客户端的应用程序的常见情况,如果服务器没有命令行参数,则argc可能为 0,调用...
int mysql_library_init(int argc, char **argv, char **groups) Description Call this function to initialize the MySQL client library before you call any other MySQL function, whether your application is a regular client program or uses the embedded server. If the application uses the embedded ...
#include <mysql.h> #include <stdlib.h> int main(void) { if (mysql_library_init(0, NULL, NULL)) { fprintf(stderr, "could not initialize MySQL client library\n"); exit(1); } /* Use any MySQL API functions here */ mysql_library_end(); return EXIT_SUCCESS; }...
这里归纳了C API可使用的函数,并在下一节详细介绍了它们。 与MySQL交互时,应用程序应使用该一般性原则: 1. 通过调用mysql_library_init(),初始化MySQL库。库可以是mysqlclient C客户端库,或mysqld嵌入式服务器库,具体情况取决于应用程序是否与“-libmysqlclient”或“-libmysqld”标志链接。
C API函数概述 与MySQL交互时,应用程序应使用该一般性原则: 1.通过调用mysql_library_init(),初始化MySQL库。库可以是mysqlclient C客户端库,或mysqld嵌入式服务器库,具体情况取决于应用程序是否与“-libmysqlclient”或“-libmysqld”标志链接。 2.通过调用mysql_init()初始化连接处理程序,并通过调用mysql_real_...
mysql_init() 初始化一个连接处理器。 会间接调用mysql_library_init函数,非多线程环境下,可以省略上面这个函数。 mysql_real_connect() 连接到服务器 函数原型是 MYSQL *mysql_real_connect(MYSQL *mysql, const char *host, const char *user, const char *passwd, const char *db, unsigned int port, con...
int mysql_library_init(int argc, char **argv, char **groups) Description Call to initialize the library before calling other functions, both for embedded servers and regular clients. If used on an embedded server, the server is started and subsystems initialized. Returns zero for success, or...
5.4.45 mysql_library_init() intmysql_library_init(intargc,char**argv,char**groups) Description Call this function to initialize the MySQL client library before you call any other MySQL function. Note To avoid memory leaks after the application is done using the library (for example, after clo...
if (mysql_library_init(0, NULL, NULL) != 0) { printf("false\n"); exit(1); } 1. 2. 3. 4. 5. (3)mysql_real_connect()函数 头文件:#include<mysql.h> 函数原型:MYSQL *mysql_real_connect(MYSQL *mysql,const char *host,const char *user,const char *passwd,const char *db,unsigned...