mysql - MYSQL 数据库表将列封顶为 22

Question

在 google 上似乎找不到任何关于此的内容。我有一个相当大的数据库，在我的一个表中，（每个表有 8 个，大约有 20-40 列）我试图再添加 20 列。它们最终在 phpmyadmin 的下拉“显示列”下拉列表中显示为空名称。但是，如果我在其中一个条目上单击编辑，则会显示名称。起初我想也许我达到了最大字符限制或类似的有趣的东西，但我可以在同一个数据库中的其他表中创建新列。

关于可能发生的事情有什么想法吗？

这是表的导出

-- phpMyAdmin SQL Dump
-- version 3.5.2.2
-- http://www.phpmyadmin.net
--
-- Host: 127.0.0.1
-- Generation Time: Nov 02, 2012 at 12:49 PM
-- Server version: 5.5.27
-- PHP Version: 5.4.7

SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;

--
-- Database: `memberships`
--

-- --------------------------------------------------------

--
-- Table structure for table `upload`
--

CREATE TABLE IF NOT EXISTS `upload` (
  `id` int(50) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL,
  `chk_long` enum('off','on') NOT NULL,
  `chk_short` enum('off','on') NOT NULL,
  `chk_bass` enum('off','on') NOT NULL,
  `chk_mid` enum('off','on') NOT NULL,
  `chk_hi` enum('off','on') NOT NULL,
  `chk_stereo` enum('off','on') NOT NULL,
  `chk_mono` enum('off','on') NOT NULL,
  `chk_left` enum('off','on') NOT NULL,
  `chk_right` enum('off','on') NOT NULL,
  `chk_noteseq` enum('off','on') NOT NULL,
  `chk_sample` enum('off','on') NOT NULL,
  `chk_midi` enum('off','on') NOT NULL,
  `var_keynote` enum('None','A','A#','B','C','C#','D','D#','E','F','F#','G','G#') NOT NULL DEFAULT 'None',
  `box_name` varchar(255) NOT NULL,
  `box_desc` varchar(255) NOT NULL,
  `sample_url` varchar(20) NOT NULL,
  `rating` int(50) NOT NULL,
  `t_up` int(50) NOT NULL,
  `t_down` int(50) NOT NULL,
  `category` enum('drums','horror','remixraw','acapella','talk','beatbox','robot','synth','object','arpeggio','bass','lead','loop','pad','soundfx','wobble','misc') NOT NULL,
  `ambient` int(10) NOT NULL,
  `breakbeat` int(10) NOT NULL,
  `disco` int(10) NOT NULL,
  `downtempo` int(10) NOT NULL,
  `drumandbass` int(10) NOT NULL,
  `dub` int(10) NOT NULL,
  `dubstep` int(10) NOT NULL,
  `electro` int(10) NOT NULL,
  `electronica` int(10) NOT NULL,
  `electronic rock` int(10) NOT NULL,
  `eurodance` int(10) NOT NULL,
  `hardcore` int(10) NOT NULL,
  `harddance` int(10) NOT NULL,
  `house` int(10) NOT NULL,
  `industrial` int(10) NOT NULL,
  `glitch` int(10) NOT NULL,
  `jungle` int(10) NOT NULL,
  `techno` int(10) NOT NULL,
  `trance` int(10) NOT NULL,
  `chiptune` int(10) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=51 ;

--
-- Dumping data for table `upload`
--

INSERT INTO `upload` (`id`, `username`, `chk_long`, `chk_short`, `chk_bass`, `chk_mid`, `chk_hi`, `chk_stereo`, `chk_mono`, `chk_left`, `chk_right`, `chk_noteseq`, `chk_sample`, `chk_midi`, `var_keynote`, `box_name`, `box_desc`, `sample_url`, `rating`, `t_up`, `t_down`, `category`, `ambient`, `breakbeat`, `disco`, `downtempo`, `drumandbass`, `dub`, `dubstep`, `electro`, `electronica`, `electronic rock`, `eurodance`, `hardcore`, `harddance`, `house`, `industrial`, `glitch`, `jungle`, `techno`, `trance`, `chiptune`) VALUES
(2, 'VVV', 'on', 'off', 'on', 'off', 'on', 'on', 'off', 'on', 'on', 'off', 'on', 'off', 'A#', 'sample for samplewars', 'asd', '../samples/65621__otherthings__inhale-10115b.wav', 903, 3249, 2346, 'drums', 21, 4, 2, 5, 46, 23, 75, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(4, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'bang', 'gg', '../samples/bang0_5.wav', 6, 23456, 23450, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(5, 'VVV', 'off', 'on', 'on', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'on', 'off', 'B', 'gfsdg', 'dsfgfsdg', '../samples/arc_4.wav', 1999, 2345, 346, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(6, 'VVV', 'off', 'on', 'on', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'on', 'off', 'B', 'dfgdg', 'dsfgfsdgdfg', '../samples/bdeHOE36024hard1.wav', -177, 58, 235, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(7, 'VVV', 'off', 'on', 'off', 'on', 'on', 'on', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'hat', 'hattattatt', '../samples/Hat20.wav', 11, 20, 9, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(8, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'baasssss', 'ssas', '../samples/bass39.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(9, 'VVV', 'off', 'on', 'off', 'on', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'sdgs', 'dfgdsg', '../samples/DJ SAMPLES VOL 2 (1).wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(10, 'VVV', 'off', 'on', 'off', 'on', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fygjfs', 'fjktyuiytdtg', '../samples/DJ SAMPLES VOL 2 (18).wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(11, 'VVV', 'off', 'on', 'off', 'on', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'retyytj', 'r6tfydzxg', '../samples/DJ SAMPLES VOL 2 (531).wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(12, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fghsdg', 'dfgnhg', '../samples/DJ SAMPLES VOL 2 (643).wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(13, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'dsfb', 'rsatey', '../samples/DJ SAMPLES VOL 2 (537).wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(14, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'dgb', 'dbgdb', '../samples/Bassdrum Gated.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(15, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'gxhn', 'dbgdb', '../samples/Snare 3.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(16, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'toml', 'dbgdb', '../samples/Tom L.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(17, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'hita', 'dbgdb', '../samples/Hihat2.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(18, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'bline', 'dbgdb', '../samples/Bassline3.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(19, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'gfjutj', 'rfujuj', '../samples/Ambient2 loop.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(20, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'xfh', 'rdh', '../samples/Deranged.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(21, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fxvxvz', 'zxbbxx', '../samples/tp1_Button_Perc_1.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(22, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'cnn', 'ghj', '../samples/tp1_Tall_Perc_1.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(23, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'cvgn', 'vcng', '../samples/tp1_Ear_Perc_1.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(24, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'vbncvbn', 'vcbn', '../samples/baligator3.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(25, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'evil', 'cbg', '../samples/evillaugh.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(26, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'monster', 'xfxf', '../samples/monster.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(27, 'VVV', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx1', 'xfxf', '../samples/VEE FX 000.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(28, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx2', 'xfxf', '../samples/VEE FX 002.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(29, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx4', 'xfxf', '../samples/VEE FX 004.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(30, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx5', 'xfxf', '../samples/VEE FX 005.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(31, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx6', 'xfxf', '../samples/VEE FX 006.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(32, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx7', 'xfxf', '../samples/VEE FX 007.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(33, 'VVV', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'fx12', 'xfxf', '../samples/VEE FX 012.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(34, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'zxvcxz', '', '../samples/VEE Clap 009.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(35, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'zxvcx', '', '../samples/VEE Clap 008.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(36, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'sfcsdf', '', '../samples/VEE Clap 003.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(37, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'sdaterw', '', '../samples/VEE Clap 010.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(38, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clap', '', '../samples/VEE Clap 042.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(39, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clap108', '', '../samples/VEE Clap 107.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(40, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clap15', '', '../samples/VEE Clap 015.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(41, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clap17', '', '../samples/VEE Clap 017.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(42, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clap22', '', '../samples/VEE Clap 022.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(43, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'cllap35', '', '../samples/VEE Clap 035.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(44, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clla7', '', '../samples/VEE Clap 007.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(45, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'clla7as', '', '../samples/VEE Clap 0212.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(46, 'VVV', 'on', 'off', 'on', 'on', 'on', 'on', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'everybody talks', 'etalk', '../samples/badman.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(47, 'VVV', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'sdafasfasdf', 'asdfasdfasdf', '../samples/perc120-31.wav', 0, 0, 0, 'robot', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(48, 'vvv2', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'None', 'dsfzsdf', 'sdfasdf', '../samples/explosion6.wav', 25, 27, 2, 'object', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(49, 'VVV', 'on', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'off', 'on', 'off', 'None', 'sdfsadf', 'asdfsadf', '../samples/kicks1100.wav', 0, 0, 0, 'drums', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
(50, 'vvv2', 'on', 'off', 'off', 'off', 'off', 'on', 'off', 'off', 'off', 'on', 'off', 'off', 'B', 'dooooood', 'ada', 'tester', 0, 0, 0, 'synth', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);

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mysql - MYSQL 数据库表将列封顶为 22

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