sqlite 例子
编译 gcc -lsqlite3 -o sample sample.c //// sample.c #include <stdio.h> #include <sqlite3.h> int main( int argc,char **argv ) { sqlite3 *db; sqlite3_stmt * stmt; const char *zTail; //打开数据库 int r = sqlite3_open("mysqlite.db",&db); if(r){ printf("%s",sqlite3_errmsg(db)); } //创建Table sqlite3_prepare(db, "CREATE TABLE players ( ID INTEGER PRIMARY KEY,name TEXT,age INTERER );", -1,&stmt,&zTail); sqlite3_step(stmt); sqlite3_finalize(stmt); //插入数据 sqlite3_prepare(db, "INSERT INTO players (name,age) VALUES(?,?);",&zTail); char str[] = "Kevin"; int n = 23; sqlite3_bind_text(stmt,1,str,-1,SQLITE_STATIC); sqlite3_bind_int(stmt,2,n); r = sqlite3_step(stmt); if( r!=SQLITE_DONE){ printf("%s",sqlite3_errmsg(db)); } sqlite3_reset(stmt); //插入第二个数据 char str2[] = "Jack"; int n2 = 16; sqlite3_bind_text(stmt,str2,n2); r = sqlite3_step(stmt); if( r!=SQLITE_DONE){ printf("%s",sqlite3_errmsg(db)); } sqlite3_finalize(stmt); //查询所有数据 sqlite3_prepare(db, "SELECT ID,name,age FROM players ORDER BY age;",&zTail); r = sqlite3_step(stmt); int number; int id; const unsigned char * name; while( r == SQLITE_ROW ){ id = sqlite3_column_int( stmt,0 ); name = sqlite3_column_text( stmt,1 ); number = sqlite3_column_int( stmt,2 ); printf("ID: %d Name: %s Age: %d /n",id,number); r = sqlite3_step(stmt); } sqlite3_finalize(stmt); //关闭数据库 sqlite3_close(db); return 0; } 简要说明一下SQLite数据库执行SQL语句的过程
当然了,你也可以根据自己的需要对现有的libsqlite进行一层封装,使得操作更方便一些。高级的功能还在学习中。。。另外想使用好sqlite db,最好先看一遍SQL的语法操作。 本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/kingmax26/archive/2010/12/31/6109540.aspx (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |