Question

我尝试将扩展属性添加到我的表和列中，但由于SQL Server分离了添加和更新存储过程，并且我的案例需要太多未使用的参数，所以我决定为这两个存储过程创建包装器，这样我就可以了在表和列级别添加或更新所需的3个参数创建描述。这是我目前的代码：

CREATE PROCEDURE sp_addorupdatedesc 
    @tableName varchar,
    @columnName varchar = NULL, 
    @objectDescription varchar
AS
BEGIN
    IF (@columnName IS NULL)
    BEGIN
        IF NOT EXISTS (SELECT 1 FROM fn_listextendedproperty (NULL, 'user', 'dbo', 'table', default, NULL, NULL) WHERE OBJNAME=@tableName)
        BEGIN
            EXECUTE sp_addextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, default, NULL
        END
        ELSE
        BEGIN
            EXECUTE sp_updateextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, default, NULL
        END
    END
    ELSE
    BEGIN
        IF NOT EXISTS (SELECT 1 
                       FROM sys.extended_properties AS ep
                       INNER JOIN sys.tables AS t ON ep.major_id = t.object_id 
                       INNER JOIN sys.columns AS c ON ep.major_id = c.object_id AND ep.minor_id = c.column_id
                       WHERE class = 1 AND T.NAME=@tableName AND C.name = @columnName)
        BEGIN
            EXECUTE sp_addextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, 'column', @columnName
        END
        ELSE
        BEGIN
            EXECUTE sp_updateextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, 'column', @columnName
        END
    END 
END
GO

但是当我使用这个存储过程时，我得到了这个错误：

Msg 15135，Level 16，State 8，Procedure sp_addextendedproperty，Line 58
对象无效。 “dbo.P.P”不允许使用扩展属性，或者该对象不存在。

Answer 1

我将其存储过程更改为marc_S建议，现在可以正常工作。

这可能是一个笨拙的错误，但我希望如果有人需要简化添加或更新扩展属性到一个存储过程中的表或列只有3个参数“TableName”，“ColumnName”，“Description”。

这是代码。

CREATE PROCEDURE setdescription 
    @tableName varchar(100),
    @columnName varchar(100) = NULL, 
    @objectDescription varchar(250)
AS
BEGIN
    IF (@columnName IS NULL)
        BEGIN
            IF NOT EXISTS (SELECT 1 FROM fn_listextendedproperty (NULL, 'user', 'dbo', 'table', default, NULL, NULL) WHERE OBJNAME=@tableName)
                BEGIN
                    EXECUTE   sp_addextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, default, NULL
                END
            ELSE
                BEGIN
                    EXECUTE   sp_updateextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, default, NULL
                END
        END
    ELSE
        BEGIN
            IF NOT EXISTS (SELECT 1 FROM sys.extended_properties AS ep
                                INNER JOIN sys.tables AS t ON ep.major_id = t.object_id 
                                INNER JOIN sys.columns AS c ON ep.major_id = c.object_id AND ep.minor_id = c.column_id
                                WHERE class = 1 AND T.NAME=@tableName AND C.name = @columnName)
                BEGIN
                    EXECUTE  sp_addextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, 'column', @columnName
                    --EXECUTE   sp_addextendedproperty @name=N'CXC_DESCRIPTION', @value=N@temp3, @level0type=N'user', @level0name=N'dbo', @level1type=N'table', @level1name=N@temp1, @level2type=N'column', @level2name=N@temp2
                END
            ELSE
                BEGIN
                    EXECUTE   sp_updateextendedproperty 'MY_DESCRIPTION', @objectDescription, 'user', dbo, 'table', @tableName, 'column', @columnName
                END
        END 
END
GO

从另一个存储过程

1 个答案: