dongxie1907 2010-06-02 20:37
浏览 6

如何编写这个MySQL数据库查询？

I need to query a table in my database that has record of goods sold. I want the query to detect a particular product and also calculate the quantity sold. The product are 300 now, but it would increase in the future.

Below is a sample of my DB Table

#----------------------------
# Table structure for litorder
#----------------------------
CREATE TABLE `litorder` (
  `id` int(10) NOT NULL auto_increment,
  `name` varchar(50) NOT NULL default '',
  `address` varchar(50) NOT NULL default '',
  `xdate` date NOT NULL default '0000-00-00',
  `ref` varchar(20) NOT NULL default '',
  `code1` varchar(50) NOT NULL default '',
  `code2` varchar(50) NOT NULL default '',
  `code3` varchar(50) NOT NULL default '',
  `code4` varchar(50) NOT NULL default '',
  `code5` varchar(50) NOT NULL default '',
  `code6` varchar(50) NOT NULL default '',
  `code7` varchar(50) NOT NULL default '',
  `code8` varchar(50) NOT NULL default '',
  `code9` varchar(50) NOT NULL default '',
  `code10` varchar(50) NOT NULL default '',
  `code11` varchar(50) character set latin1 collate latin1_bin NOT NULL default '',
  `code12` varchar(50) NOT NULL default '',
  `code13` varchar(50) NOT NULL default '',
  `code14` varchar(50) NOT NULL default '',
  `code15` varchar(50) NOT NULL default '',
  `product1` varchar(100) NOT NULL default '0',
  `product2` varchar(100) NOT NULL default '0',
  `product3` varchar(100) NOT NULL default '0',
  `product4` varchar(100) NOT NULL default '0',
  `product5` varchar(100) NOT NULL default '0',
  `product6` varchar(100) NOT NULL default '0',
  `product7` varchar(100) NOT NULL default '0',
  `product8` varchar(100) NOT NULL default '0',
  `product9` varchar(100) NOT NULL default '0',
  `product10` varchar(100) NOT NULL default '0',
  `product11` varchar(100) NOT NULL default '0',
  `product12` varchar(100) NOT NULL default '0',
  `product13` varchar(100) NOT NULL default '0',
  `product14` varchar(100) NOT NULL default '0',
  `product15` varchar(100) NOT NULL default '0',
  `price1` int(10) NOT NULL default '0',
  `price2` int(10) NOT NULL default '0',
  `price3` int(10) NOT NULL default '0',
  `price4` int(10) NOT NULL default '0',
  `price5` int(10) NOT NULL default '0',
  `price6` int(10) NOT NULL default '0',
  `price7` int(10) NOT NULL default '0',
  `price8` int(10) NOT NULL default '0',
  `price9` int(10) NOT NULL default '0',
  `price10` int(10) NOT NULL default '0',
  `price11` int(10) NOT NULL default '0',
  `price12` int(10) NOT NULL default '0',
  `price13` int(10) NOT NULL default '0',
  `price14` int(10) NOT NULL default '0',
  `price15` int(10) NOT NULL default '0',
  `quantity1` int(10) NOT NULL default '0',
  `quantity2` int(10) NOT NULL default '0',
  `quantity3` int(10) NOT NULL default '0',
  `quantity4` int(10) NOT NULL default '0',
  `quantity5` int(10) NOT NULL default '0',
  `quantity6` int(10) NOT NULL default '0',
  `quantity7` int(10) NOT NULL default '0',
  `quantity8` int(10) NOT NULL default '0',
  `quantity9` int(10) NOT NULL default '0',
  `quantity10` int(10) NOT NULL default '0',
  `quantity11` int(10) NOT NULL default '0',
  `quantity12` int(10) NOT NULL default '0',
  `quantity13` int(10) NOT NULL default '0',
  `quantity14` int(10) NOT NULL default '0',
  `quantity15` int(10) NOT NULL default '0',
  `amount1` int(10) NOT NULL default '0',
  `amount2` int(10) NOT NULL default '0',
  `amount3` int(10) NOT NULL default '0',
  `amount4` int(10) NOT NULL default '0',
  `amount5` int(10) NOT NULL default '0',
  `amount6` int(10) NOT NULL default '0',
  `amount7` int(10) NOT NULL default '0',
  `amount8` int(10) NOT NULL default '0',
  `amount9` int(10) NOT NULL default '0',
  `amount10` int(10) NOT NULL default '0',
  `amount11` int(10) NOT NULL default '0',
  `amount12` int(10) NOT NULL default '0',
  `amount13` int(10) NOT NULL default '0',
  `amount14` int(10) NOT NULL default '0',
  `amount15` int(10) NOT NULL default '0',
  `totalNaira` double(20,0) NOT NULL default '0',
  `totalDollar` int(20) NOT NULL default '0',
  PRIMARY KEY  (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT='InnoDB free: 4096 kB; InnoDB free: 4096 kB; InnoDB free: 409';
#----------------------------
# Records for table litorder
#----------------------------


insert  into litorder values 
(27, 'Sanyaolu Fisayo', '14 Adegboyega Street Palmgrove Lagos', '2010-05-31', '', 'DL 001', 'DL 002', 'DL 003', '', '', '', '', '', '', '', '', '', '', '', '', 'AILMENT & PREVENTION DVD- ENGLISH', 'AILMENT & PREVENTION DVD- HAUSA', 'BEAUTY CD', '', '', '', '', '', '', '', '', '', '', '', '', 800, 800, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 16, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12800, 12800, 60000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '85600', 563), 
(28, 'Irenonse Esther', 'Lagos,Nigeria', '2010-06-01', '', 'DL 005', 'DL 008', 'FC 004', '', '', '', '', '', '', '', '', '', '', '', '', 'GET HEALTHY DVD', 'YOUR FUTURE DVD', 'FOREVER FACE CAP (YELLOW)', '', '', '', '', '', '', '', '', '', '', '', '', 1000, 900, 2000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2000, 1800, 6000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '9800', 64), 
(29, 'Kalu Lekway', 'Lagos, Nigeria', '2010-06-01', '', 'DL 001', 'DL 003', '', '', '', '', '', '', '', '', '', '', '', '', '', 'AILMENT & PREVENTION DVD- ENGLISH', 'BEAUTY CD', '', '', '', '', '', '', '', '', '', '', '', '', '', 800, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2400, 18000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '20400', 133), 
(30, 'Dele', 'Ilupeju', '2010-06-02', '', 'DL 001', 'DL 003', '', '', '', '', '', '', '', '', '', '', '', '', '', 'AILMENT & PREVENTION DVD- ENGLISH', 'BEAUTY CD', '', '', '', '', '', '', '', '', '', '', '', '', '', 800, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8000, 30000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '38000', 250);
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4条回答 默认 最新

  • dongzheng7165 2010-06-02 20:43
    关注

    I'm not exactly sure what your question is, but your table design seems to be your problem. Any time you have columns foo1, foo2, foo3, etc... that should be a sign to you that your design might need modification.

    I suggest you look at database normalization and the Wikipedia page on First Normal Form. In particular you could look at the section about repeating groups across columns and how to resolve it.

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