#include<stdio.h>
#include<sqlite3.h>       ///  /home/csgec/build/sqlite3-pc/includeint main()
{//1建立连接，打开数据库sqlite3 *db;int res = sqlite3_open("/home/csgec/test.db",&db);if(res != SQLITE_OK){fprintf(stderr,"open db err:%s\n",sqlite3_errmsg(db));sqlite3_close(db);return 1;}printf("open or creat db ok!\n");//2.操纵数据库char *errmsg;char *createSql = "create table if not exists tb_stu(id integer primary key ,name text not null,age integer);";res = sqlite3_exec(db,createSql,NULL,NULL,&errmsg);if(res != SQLITE_OK){fprintf(stderr,"exec error:%s\n",errmsg);sqlite3_close(db);return 1;}printf("exec ok!\n");int id;char name[20];int age;scanf("%d%s%d",&id,name,&age);char insertSql[1024];sprintf(insertSql,"insert into tb_stu values(%d,'%s',%d);",id,name,age);printf("insertSql = %s\n",insertSql);res = sqlite3_exec(db,insertSql,NULL,NULL,&errmsg);if(res != SQLITE_OK){fprintf(stderr,"insert error:%s\n",errmsg);sqlite3_free(errmsg);sqlite3_close(db);return 1;}//3.关闭数据库sqlite3_close(db);return 0;
}

#include<stdio.h>
#include<sqlite3.h>  //  -I /home....int callback(void *arg,int count,char **names,char **values);
int main()
{sqlite3*db;int res = sqlite3_open("/home/csgec/test.db",&db);if(res != SQLITE_OK){fprintf(stderr,"open db err: %s \n",sqlite3_errmsg(db));sqlite3_close(db);return -1;}char *selectSql = "select id,name,age from tb_stu;";char *errmsg;res = sqlite3_exec(db,selectSql,callback,NULL,&errmsg);if(res != SQLITE_OK){fprintf(stderr,"exec err: %s \n",errmsg);sqlite3_free(errmsg);sqlite3_close(db);return -1;}sqlite3_close(db);return 0;
}int callback(void *arg,int count,char **values,char **names)
{printf("count = %d\n",count);int i;for(i = 0; i < count; i++){printf("%s\t",names[i]);}printf("\n");for(i = 0; i < count; ++i){printf("%s\t",values[i]);}printf("\n");return 0;
}

#include<stdio.h>
#include<sqlite3.h>       ///  /home/csgec/build/sqlite3-pc/include
#include<string.h>
int main()
{//1建立连接，打开数据库sqlite3 *db;int res = sqlite3_open("/home/csgec/test.db",&db);if(res != SQLITE_OK){fprintf(stderr,"open db err:%s\n",sqlite3_errmsg(db));sqlite3_close(db);return 1;}printf("open or creat db ok!\n");//2.操纵数据库int id;char name[20];int age;char *insertSql = "insert into tb_stu values(?,?,?);";sqlite3_stmt *stmt;res = sqlite3_prepare_v2(db,insertSql,strlen(insertSql),&stmt,NULL);if(res != SQLITE_OK){fprintf(stderr,"prepare error:%s\n",sqlite3_errmsg(db));sqlite3_close(db);return -1;}printf("prepare ok!\n");while(1){scanf("%d%s%d",&id,name,&age);sqlite3_bind_int(stmt,1,id);sqlite3_bind_text(stmt,2,name,strlen(name),NULL);sqlite3_bind_int(stmt,3,age);//3.执行res = sqlite3_step(stmt);printf("step res = %d\n",res);if(res != SQLITE_DONE){fprintf(stderr,"step error:%s\n",sqlite3_errmsg(db));}sqlite3_reset(stmt);}//4.销毁sqlite3_finalize(stmt);//5.关闭数据库sqlite3_close(db);return 0;
}

#include<stdio.h>
#include<sqlite3.h>       ///  /home/csgec/build/sqlite3-pc/include
#include<string.h>
int main()
{//1建立连接，打开数据库sqlite3 *db;int res = sqlite3_open("/home/csgec/test.db",&db);if(res != SQLITE_OK){fprintf(stderr,"open db err:%s\n",sqlite3_errmsg(db));sqlite3_close(db);return 1;}printf("open or creat db ok!\n");//2.操纵数据库char *selectSql = "select id,name,age from tb_stu;";sqlite3_stmt *stmt;res = sqlite3_prepare_v2(db,selectSql,-1,&stmt,NULL);if(res != SQLITE_OK){fprintf(stderr,"prepare err:%s\n",sqlite3_errmsg(db));sqlite3_close(db);return 1;}res = sqlite3_step(stmt);while(res == SQLITE_ROW){int id = sqlite3_column_int(stmt,0);const char*name = sqlite3_column_text(stmt,1);int age = sqlite3_column_int(stmt,2);printf("%d\t%s\t%d\n",id,name,age);res = sqlite3_step(stmt);}//4.销毁sqlite3_finalize(stmt);//5.关闭数据库sqlite3_close(db);return 0;
}