在SQLite ios中獲取錯誤？

Question

我正在構建一個使用storyboard的iOS應用程序。我使用SQLite創建了一個表格。

我面臨着數據的插入問題表明我的錯誤：

Failed to insert record rc:1, msg=no such column: Afternoon 

這裏是我的代碼：

創建表的代碼：

char * query ="CREATE TABLE IF NOT EXISTS events (id INTEGER PRIMARY KEY AUTOINCREMENT, eventid TEXT, addinfo TEXT,date TEXT,players TEXT, sportsname TEXT, Time TEXT,userid TEXT, venue TEXT)"; 

插入表中的功能：

-(int) insert:(NSString *)filePath withName:(NSString *)eventid addinfo:(NSString*)addinfo date:(NSString*)date 
players:(NSString*)players sportsname:(NSString*)sportsname Time:(NSString*)Time userid:(NSString*)userid venue:(NSString*)venue { 
    sqlite3* db = NULL; 
    int rc=0; 
    rc = sqlite3_open_v2([filePath cStringUsingEncoding:NSUTF8StringEncoding], &db, SQLITE_OPEN_READWRITE , NULL); 

    if (SQLITE_OK != rc) { 
     sqlite3_close(db); 
     NSLog(@"Failed to open db connection"); 
    } 
    else { 
     NSString * query = [NSString stringWithFormat:@"INSERT INTO events (eventid,addinfo,date,players,sportsname,Time,userid,venue) 
          VALUES (\"%@\",\"%@\",\"%@\",\"%@\",\"%@\",%@,\"%@\",\"%@\")", eventid,addinfo,date,players,sportsname,Time,userid,venue]; 

     char * errMsg; 
     rc = sqlite3_exec(db, [query UTF8String] ,NULL,NULL,&errMsg); 

     if (SQLITE_OK != rc) { 
      NSLog(@"Failed to insert record rc:%d, msg=%s",rc,errMsg); 
     } 
     sqlite3_close(db); 
    } 
    return rc; 
} 

獲取記錄功能

-(NSArray *) getRecords:(NSString*) filePath where:(NSString *)whereStmt { 
    NSMutableArray * events =[[NSMutableArray alloc] init]; 
    sqlite3* db = NULL; 
    sqlite3_stmt* stmt =NULL; 
    int rc=0; 
    rc = sqlite3_open_v2([filePath UTF8String], &db, SQLITE_OPEN_READONLY , NULL); 

    if (SQLITE_OK != rc) { 
     sqlite3_close(db); 
     NSLog(@"Failed to open db connection"); 
    } else { 
     NSString * query = @"SELECT * from events"; 

     if(whereStmt) { 
      query = [query stringByAppendingFormat:@" WHERE %@",whereStmt]; 
     } 

     rc =sqlite3_prepare_v2(db, [query UTF8String], -1, &stmt, NULL); 
     if(rc == SQLITE_OK) { 

      while (sqlite3_step(stmt) == SQLITE_ROW) //get each row in loop 
      { 
       NSString * eventid = [NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 1)]; 
       NSString *addinfo = [NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 2)]; 
       NSString *date = [NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 3)]; 
       NSString *players =[NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 4)]; 
       NSString *sportsname =[NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 5)]; 
       NSString *Time =[NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 6)]; 
       NSString *userid =[NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 7)]; 
       NSString *venue =[NSString stringWithUTF8String:(const char *)sqlite3_column_text(stmt, 8)]; 
       NSDictionary *student = [NSDictionary dictionaryWithObjectsAndKeys:eventid,@"eventid",addinfo,@"addinfo",date,@"date",players,@"players",sportsname,@"sportsname",Time,@"Time",userid,@"userid",venue,@"venue",nil]; 

       [events addObject:student]; 
       NSLog(@"eventsid= %@, userid=%@ , sportsname= %@ , date= %@ , Time= %@,players= %@, venue= %@, addinfo=%@",eventid,userid,sportsname,date,Time,players,venue,addinfo); 
      } 
      NSLog(@"Done"); 
      sqlite3_finalize(stmt); 
     } 
     else { 
      NSLog(@"Failed to prepare statement with rc:%d",rc); 
     } 
     sqlite3_close(db); 
    } 
    return events; 
} 


NSData* data = [NSData dataWithContentsOfURL:url]; 
NSArray *ys_avatars = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil]; 
NSLog(@"arrayyyyyy=%@",ys_avatars); 

if(ys_avatars) { 

for (int j=0;j<ys_avatars.count;j++) { 
    int rc= [self insert:[self getDbFilePath] withName:ys_avatars[j][@"_id"] addinfo:ys_avatars[j][@"addinfo"] date:ys_avatars[j][@"date"] players:ys_avatars[j][@"players"] sportsname:ys_avatars[j][@"sportsname"] Time:ys_avatars[j][@"time"] userid:ys_avatars[j][@"userid"] venue:ys_avatars[j][@"venue"]]; 

    if(rc != SQLITE_OK) { 
     [self showMessage:@"ERROR" withMessage:@"Failed to insert record"];  
    } 
    else 
     [self showMessage:@"SUCCESS" withMessage:@"Record is added"]; 

    NSArray * events = [self getRecords:[self getDbFilePath] where:nil];   

Answer 1

您的問題將在後面解決，只需更換從

NSString * query = [NSString 
         stringWithFormat:@"INSERT INTO events (eventid,addinfo,date,players,sportsname,Time,userid,venue) VALUES (\"%@\",\"%@\",\"%@\",\"%@\",\"%@\",%@,\"%@\",\"%@\")",eventid,addinfo,date,players,sportsname,Time,userid,venue]; 

此行

NSString * query = [NSString 
          stringWithFormat:@"INSERT INTO events (eventid,addinfo,date,players,sportsname,Time,userid,venue) VALUES (\"%@\",\"%@\",\"%@\",\"%@\",\"%@\",\"%@\",\"%@\",\"%@\")",eventid,addinfo,date,players,sportsname,Time,userid,venue]; 

Answer 2

這裏的原因可能是表列值是誤導與表列名稱。我的意思是表events的記錄信息是考慮某些地方作爲列名。

從錯誤它自我你可以得到的細節記錄信息Afternoon這被認爲是列值被視爲一個列名。

所以查詢字符串創建是錯在這裏：

嘗試建立這樣的查詢將最大限度地減少這種問題的可能性：

NSString * query = [NSString stringWithFormat:@"INSERT INTO events (eventid, addinfo, date, players, sportsname, Time, userid, venue) VALUES (?, ?, ?, ?, ?, ?, ?, ?)"]; 

const char *insert_stmt = [query UTF8String]; 
if (sqlite3_prepare_v2(database, insert_stmt, -1, &statement, NULL) == SQLITE_OK) { 
    sqlite3_bind_text(statement, 1, [eventid UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_double(statement, 2, [addinfo UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_blob(statement, 3, [date UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_text(statement, 4, [players UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_text(statement, 5, [sportsname UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_text(statement, 6, [Time UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_text(statement, 7, [userid UTF8String], -1, SQLITE_TRANSIENT); 
    sqlite3_bind_text(statement, 8, [venue UTF8String], -1, SQLITE_TRANSIENT); 
}