//
// ParseDrop.cpp
// SQL parser and interpreter
//
// Created by on 17/2/5.
// Copyright 2017 Xuan Wang. All rights reserved.
//
#include
#include
#include
#include
#include "lexanal.h"
char ParseDrop(char check, char* tname, char* p, char* token, int token_code){
int i;
//get next token--TABLE
p=lex_anal( p, token, &token_code );//watch out for space
if(token_code!=TABLE){
printf("Error: keyword TABLE excepted");
check='N';
return check;
}
//get next token--table name
p=lex_anal( p, token, &token_code );
if(token_code!=IDENTIFIER){
printf("Error: table name expected");
check='N';
return check;
}
else{
//store table name
for(i=0;i