このストアドdoes'ntリターンが

Question

をもたらし、なぜ私は、高度な検索プロセスを構築するために、このストアド・ファンクションを作成しているが、私はコードを試してみたが、それは正しく

私が思うに格納されている任意のそれが返す結果を使用せずに結果を返していない気づきましたパラメータと間違って何かSearchWord

DELIMITER // 
CREATE PROCEDURE AdvancedSearch(IN SearchWord VARCHAR(255)) 
    BEGIN 
    SELECT * FROM (

        SELECT CustomerId AS id,CustomerCompany AS name ,null AS descrip,null AS FileName 
        FROM tbcustomers 
         LEFT JOIN tbfiles ON tbcustomers.CustomerId = tbfiles.CatId AND tbfiles.ModuleName = "customers" 
        WHERE tbcustomers.CustomerCompany LIKE CONCAT('%', @SearchWord , '%') 

        UNION 
        SELECT DeviceId AS id,DeviceName AS name,DeviceDesc AS descrip,FileName 
        FROM tbdevices 
         LEFT JOIN tbfiles ON tbdevices.DeviceId = tbfiles.CatId AND tbfiles.ModuleName = "devices" 
        WHERE tbdevices.DeviceName LIKE CONCAT('%', @SearchWord , '%') 
          OR tbdevices.DeviceDesc LIKE CONCAT('%', @SearchWord , '%') 
          OR tbdevices.DeviceProperties LIKE CONCAT('%', @SearchWord , '%') 

        UNION 
        SELECT HostingId AS id,HostingName AS name,HostingType AS descrip,FileName 
        FROM tbhosting 
         LEFT JOIN tbfiles ON tbhosting.HostingId = tbfiles.CatId AND tbfiles.ModuleName = "hosting" 
        WHERE tbhosting.HostingName LIKE CONCAT('%', @SearchWord , '%') 
          OR tbhosting.HostingType LIKE CONCAT('%', @SearchWord , '%') 
          OR tbhosting.HostingSpace LIKE CONCAT('%', @SearchWord , '%') 
          OR tbhosting.HostingRam LIKE CONCAT('%', @SearchWord , '%') 
          OR tbhosting.HostingUsage LIKE CONCAT('%', @SearchWord , '%') 
          OR tbhosting.HostingUsagebases LIKE CONCAT('%', @SearchWord , '%') 

        UNION 
        SELECT PageId AS id,PageTitle AS name,PageDesc AS descrip,FileName 
        FROM tbpages 
         LEFT JOIN tbfiles ON tbpages.PageId = tbfiles.CatId AND tbfiles.ModuleName = "pages" 
        WHERE tbpages.PageTitle LIKE CONCAT('%', @SearchWord , '%') 
          OR tbpages.PageDesc LIKE CONCAT('%', @SearchWord , '%') 
          OR tbpages.PageSubject LIKE CONCAT('%', @SearchWord , '%') 


        UNION 
        SELECT ProductId AS id,ProductName AS name,ProductDesc AS descrip,FileName 
        FROM tbproducts 
         LEFT JOIN tbfiles ON tbproducts.ProductId = tbfiles.CatId AND tbfiles.ModuleName = "products" 
        WHERE tbproducts.ProductName LIKE CONCAT('%', @SearchWord , '%') 
          OR tbproducts.ProductTitle LIKE CONCAT('%', @SearchWord , '%') 
          OR tbproducts.ProductDesc LIKE CONCAT('%', @SearchWord , '%') 
          OR tbproducts.ProductProperties LIKE CONCAT('%', @SearchWord , '%') 
          OR tbproducts.ProductPrice LIKE CONCAT('%', @SearchWord , '%') 
          OR tbproducts.ProductNumVersion LIKE CONCAT('%', @SearchWord , '%') 

        UNION 
        SELECT ProjectId AS id,ProjectName AS name,ProjectDesc AS descrip,FileName 
        FROM tbprojects 
         LEFT JOIN tbfiles ON tbprojects.ProjectId = tbfiles.CatId AND tbfiles.ModuleName = "projects" 
        WHERE tbprojects.ProjectName LIKE CONCAT('%', @SearchWord , '%') 
          OR tbprojects.ProjectDesc LIKE CONCAT('%', @SearchWord , '%') 
       ) AS v 
    WHERE v.name != '' 
    GROUP BY v.id; 
    END // 
DELIMITER ; 

Answer 1

パラメータ名はSearchWordですが、手続きの本体に@SearchWordとしてそれを使用しました。 @記号を取り除くと動作します