MSSQL數據解析

Question

我不知道它叫什麼，所以我只是試圖解釋。

可以說有兩個表，tableA和tableB。

• 在tableA存在具有若干列（例如105條）
• 在tableB存在具有一個文本列（例如，「這」）

105手段'這個'。

所以一個數字存儲在A表中w/c在B表中有含義。

我想獲得tableA號碼，但是當它顯示時它會顯示'This'。

邏輯：如果從A的結果是105，則顯示從乙等效文本其中id是105 顯示器：THIS

SELECT TOP 1 
    CHAR_KEY AS charid, 
    USER_KEY AS userid, 
    CONVERT(VARCHAR,substring(char_data, 9, 16)) AS name, 
    CONVERT(INT,cast(reverse(substring(char_data, 7, 2)) as BINARY(2))) AS level, 
    CONVERT(INT,substring(char_data, 25, 1)) AS type, 
    CONVERT(INT,cast(reverse(substring(char_data, 263, 2)) as BINARY(2))) AS strength, 
    CONVERT(INT,cast(reverse(substring(char_data, 265, 2)) as BINARY(2))) AS wisdom, 
    CONVERT(INT,cast(reverse(substring(char_data, 267, 2)) as BINARY(2))) AS dexterity, 
    CONVERT(INT,cast(reverse(substring(char_data, 269, 2)) as BINARY(2))) AS charisma, 
    CONVERT(INT,cast(reverse(substring(char_data, 271, 2)) as BINARY(2))) AS intelligence, 
    CONVERT(INT,cast(reverse(substring(char_data, 273, 2)) as BINARY(2))) AS constitution, 
    CONVERT(INT,cast(reverse(substring(char_data, 309, 4)) as BINARY(4))) AS fame, 
    CONVERT(INT,cast(reverse(substring(char_data, 33, 4)) as BINARY(4))) AS guild, 
    CONVERT(INT, substring(char_data, 261, 1)) AS permission 
FROM CHAR_DATA0 WHERE CONVERT(INT, substring(char_data, 261, 1))=0x00 ORDER BY level DESC 

的查詢來獲取公會的名稱。

SELECT 
    guild_name 
FROM guild_data WHERE guild_key=guild 

我想要得到的是guild。從第一SELECT查詢

實施例的guild結果：518

在桌子上guild_data，列guild_name包含公會518 518的名稱是guild_key。

請幫忙，謝謝。

Answer 1

SELECT 
    guild_data.guild_name 
FROM CHAR_DATA0 
inner join guild_data on guild_key = CONVERT(INT,cast(reverse(substring(char_data, 33, 4)) as BINARY(4))) 
WHERE CONVERT(INT, substring(char_data, 261, 1))=0x00 ORDER BY level DESC 

Answer 2

你需要一個 「選擇」 和 「加盟」

select b.text 
    from tablea a 
    inner join tableb b on a.id = b.id 
    where a.id = 105 

爲了使這項工作，但是，你需要 「ID」 BOTH表所示。