如何在一个查询中合并2个选择？

我有选择使用从第二PARAMS从第一个表中的一些东西的SQL查询，然后我需要获得除第一代码从第二表中的一些列看起来像如何在一个查询中合并2个选择？

SELECT 
    entry AS entry, 
    ItemLevel AS ItemLevel, 
    RequiredLevel AS RequiredLevel, 
    InventoryType AS InventoryType, 
    Quality AS Quality, 
    class AS class, 
    subclass AS subclass 
FROM item_template 
WHERE entry IN (SELECT entry FROM locales_item WHERE name_loc8 LIKE ?) 
ORDER BY ItemLevel DESC; 

SELECT entry, name_loc8, description_loc8 FROM locales_item WHERE name_loc8 LIKE ?

但它抛出一个错误

您的SQL语法错误;检查对应于你的MySQL服务器版本使用附近的“选择项，name_loc8，description_loc8 FROM locales_item WHERE name_loc8 LIKE”在行1

如何解决这个正确的语法手册？

来源

2015-11-03 Artem Layko

YOu可能想要查看JOIN – Mihai

您尝试一次运行2个查询。你如何执行它们？ –

@Mihai你可以用连接格式吗？ –

你应该使用join到两个表连接：

SELECT 
    item_template.entry AS entry, 
    ItemLevel AS ItemLevel, 
    RequiredLevel AS RequiredLevel, 
    InventoryType AS InventoryType, 
    Quality AS Quality, 
    class AS class, 
    subclass AS subclass 
FROM item_template inner join locales_item 
on item_template.entry = locales_item.entry 
WHERE name_loc8 LIKE ? 
ORDER BY ItemLevel DESC;

来源

2015-11-03 21:58:00

SQL（1064）：您在SQL语法中有错误;检查与您的MySQL服务器版本相对应的手册，以便在''附近使用正确的语法'？ ORDER BY ItemLevel DESC'at line 11 –

我从原始查询中复制了'？'，你需要在那里放置你的查询条件 –

如果条目是一个独特的密钥，那么你可以加入两个表一起，像这样

SELECT it.stuff, li.stuff 
FROM item_template it 
JOIN locales_item li ON li.entry = it.entry 
WHERE li.name_loc8 LIKE "some string" 
ORDER BY it.ItemLevel DESC

这样就省去了您与IN()相关子查询，因为已经加入表过滤像哪来

来源

2015-11-03 21:56:29

如果你想加入的两个结果查询您可以使用UNION，但是我认为您在此之后将两个表中的匹配记录合并为一个查询，您可以使用JOIN进行查询。

你的榜样，我想你要找的是这样的查询：

SELECT t.entry   AS entry, 
     t.ItemLevel  AS ItemLevel, 
     t.RequiredLevel AS RequiredLevel, 
     t.InventoryType AS InventoryType, 
     t.Quality  AS Quality, 
     t.class   AS class, 
     t.subclass  AS subclass, 
     l.entry   AS locale_entry, 
     l.name_loc8  AS name_loc8, 
     l.description_loc8 AS description_loc8 
FROM item_template t 
INNER JOIN locales_item l ON l.entry = t.entry 
WHERE l.name_loc8 LIKE ? 
ORDER BY t.ItemLevel DESC;

来源

2015-11-03 22:00:48 bunnmatt

-1

//使用连接查询

SELECT a.field1，a.field2，b.field3 ，b.field4 FROM表1一个，表2 b，其中 a.field1 = b.field3 ORDER BY a.field4

来源

2015-11-03 22:02:07 rahul

尝试这个

SELECT 
    t1.entry AS entry, 
    t2.name_loc8, 
    t2.description_loc8 
    t1.ItemLevel AS ItemLevel, 
    t1.RequiredLevel AS RequiredLevel, 
    t1.InventoryType AS InventoryType, 
    t1.Quality AS Quality, 
    t1.class AS class, 
    subclass AS subclass 
FROM item_template t1 
left join locales_item t2 on t1.entry = t2.entry 
WHERE t2.name_loc8 LIKE '%addyourtexthere%'----just change the text between the percent signs to the string your looking for 
ORDER BY ItemLevel DESC;

，并且如果您将其称为同名，则在每列之后不需要“AS”。

来源

2015-11-03 22:04:11 D4TAM4X

如何在一个查询中合并2个选择？

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