fmdb 复制表 && 判断表是否存在

fmdb复制表语句： create table tab_new as select * from tab_old sql 判断表是否存在： BOOL isTableExist(FMDatabase *db,NSString * tableName)spa {3d     FMResultSet *rs = [dbexecuteQuery:@"select count(*) as 'count' f

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