sqlite的设计开发
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资源说明:不错,有点用#include #include "sqlite.h" int callback( void *p_data, int num_fields, char **p_fields, char **p_col_names); main(){ FILE *inp_fp; int ret; int nrecs = 0; char *errmsg; sqlite *p_db; unsigned char *sqlcommand; unsigned char * sqlcreatedb; sqlcommand="select * from user ;" ; sqlcreatedb="create table user(id numeric, name text);"; /*建立数据库*/ if ((inp_fp = fopen("./sysdb", "r"))==NULL) { printf("Cannot find database file !\\n"); printf("Recover the database file ...\\n"); p_db=sqlite_open("./sysdb",0777,0); sqlite_exec(p_db,sqlcreatedb,0,0,0); printf("The database file have been recorvered!\\n"); sqlite_close(p_db); } /*打开数据库*/ sqlite* p_db=sqlite_open("./sysdb", 0777, 0); /*选择 user表中的所有记录. */ ret=sqlite_exec(p_db,sqlcommand,callback, &nrecs, errmsg); if(ret!=SQLITE_OK){ printf("Error on SELECT: %s.\\n", errmsg); } else{ printf("Retrieved %i records.\\n", nrecs); } /* 关闭数据库*/ sqlite_close(p_db);
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