sql 服务器存储过程检查其他数据库中是否存在 table 并重命名

Question

有 2 个数据库：MAIN 和 IP2LOCATION

在 MAIN 中，我有以下存储过程：

CREATE PROCEDURE dbo.Update_IP2Location_DB11_from_CSV
AS
BEGIN
    IF  NOT EXISTS (SELECT * FROM sys.objects 
    WHERE object_id = OBJECT_ID(N'[ip2location].[dbo].[db11_new]') AND type in (N'U'))
        BEGIN
            CREATE TABLE [ip2location].[dbo].[db11_new]
            (
                [ip_from]       bigint          NOT NULL,
                [ip_to]         bigint          NOT NULL,
                [country_code]  nvarchar(2)     NOT NULL,
                [country_name]  nvarchar(64)    NOT NULL,
                [region_name]   nvarchar(128)   NOT NULL,
                [city_name]     nvarchar(128)   NOT NULL,
                [latitude]      float           NOT NULL,
                [longitude]     float           NOT NULL,
                [zip_code]      nvarchar(30)    NOT NULL,
                [time_zone]     nvarchar(8)     NOT NULL,
            ) ON [PRIMARY]

            CREATE INDEX [ip_from] ON [ip2location].[dbo].[db11_new]([ip_from])
        END
    ELSE
        BEGIN
            DELETE FROM [ip2location].[dbo].[db11_new]
        END

    BULK INSERT [ip2location].[dbo].[db11_new]
        FROM 'D:\IP2LOCATION-LITE-DB11.CSV'
        WITH
        ( FORMATFILE = 'C:\inetpub\wwwroot\ws\DB11_ip4.FMT')

    EXEC sp_rename N'dbo.db11', N'db11_old', 'OBJECT'
    EXEC sp_rename N'ip2location.dbo.db11_new', N'db11', 'OBJECT'   
END

无法正常工作：

如果 db11_new 不存在，它（正确地）创建它，但如果它存在..我得到

There is already an object named 'db11_new' in the database.

因此

似乎有问题

IF  NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[ip2location].[dbo].[db11_new]') AND type in (N'U'))

并且在 2 Rename 的过程结束时，我（总是）得到以下答案

Msg 15248, Level 11, State 1, Procedure sp_rename, Line 359 Either the parameter @objname is ambiguous or the claimed @objtype (OBJECT) is wrong.

似乎问题是因为 sproc 没有存储到 ip2location 数据库中，而是存储在另一个数据库中..

可以建议一个解决方案，考虑到我更愿意将所有存储过程保留在 MAIN DB 中，因为所有其他存储过程都在那里？

谢谢

Answer 1

sys.objects 和 sp_rename 是本地对象。尝试使用这个：

IF  NOT EXISTS (SELECT * FROM ip2location.sys.objects 
    WHERE object_id = OBJECT_ID(N'[dbo].[db11_new]') AND type in (N'U'))

和

    EXEC ip2location.sp_rename N'dbo.db11_new', N'db11', 'OBJECT'

也许有帮助...

或者，当您想在当前数据库之外的另一个数据库中执行操作时，您可以动态编写代码 sql，然后直接在另一个数据库中执行。

https://msdn.microsoft.com/en-us/library/ms188001.aspx

Answer 2

therefore it seems there is something wrong in
IF  NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[ip2location].[dbo].[db11_new]') AND type in (N'U'))

您的分析是正确的。 sys.objects 目录视图将在当前数据库上下文 (MAIN) 中 return 个对象。尽管您可以只使用由 3 部分组成的名称 (ip2location.sys.objects)，但我建议您只检查 NULL OBJECT_ID 函数结果：

IF  OBJECT_ID(N'[ip2location].[dbo].[db11_new]', 'U') IS NULL
        BEGIN
            CREATE TABLE [ip2location].[dbo].[db11_new]
            (
                [ip_from]       bigint          NOT NULL,
                [ip_to]         bigint          NOT NULL,
                [country_code]  nvarchar(2)     NOT NULL,
                [country_name]  nvarchar(64)    NOT NULL,
                [region_name]   nvarchar(128)   NOT NULL,
                [city_name]     nvarchar(128)   NOT NULL,
                [latitude]      float           NOT NULL,
                [longitude]     float           NOT NULL,
                [zip_code]      nvarchar(30)    NOT NULL,
                [time_zone]     nvarchar(8)     NOT NULL,
            ) ON [PRIMARY];

            CREATE INDEX [ip_from] ON [ip2location].[dbo].[db11_new]([ip_from]);
        END;
    ELSE
        BEGIN
            DELETE FROM [ip2location].[dbo].[db11_new];
        END;

Answer 3

我已经测试了这个查询（没有 csv 上传）

起初我删除了所有对 ip2location:

的引用

CREATE PROCEDURE dbo.Update_IP2Location_DB11_from_CSV
AS
BEGIN
IF  NOT EXISTS (SELECT * FROM sys.objects 
    WHERE object_id = OBJECT_ID(N'dbo.db11_new') AND type in (N'U'))
        BEGIN
            CREATE TABLE [dbo].[db11_new]
            (
                [ip_from]       bigint          NOT NULL,
                [ip_to]         bigint          NOT NULL,
                [country_code]  nvarchar(2)     NOT NULL,
                [country_name]  nvarchar(64)    NOT NULL,
                [region_name]   nvarchar(128)   NOT NULL,
                [city_name]     nvarchar(128)   NOT NULL,
                [latitude]      float           NOT NULL,
                [longitude]     float           NOT NULL,
                [zip_code]      nvarchar(30)    NOT NULL,
                [time_zone]     nvarchar(8)     NOT NULL,
            ) ON [PRIMARY]

            CREATE INDEX [ip_from] ON [dbo].[db11_new]([ip_from])
        END
    ELSE
        BEGIN
            DELETE FROM [dbo].[db11_new]
        END

    BULK INSERT [dbo].[db11_new]
        FROM 'D:\IP2LOCATION-LITE-DB11.CSV'
        WITH
        ( FORMATFILE = 'C:\inetpub\wwwroot\ws\DB11_ip4.FMT')

    EXEC sp_rename N'dbo.db11', N'db11_old', 'OBJECT'
    EXEC sp_rename N'dbo.db11_new', N'db11', 'OBJECT'   
END
GO

第一个运行:

我没有 db11* table。执行带给我：

Msg 15248, Level 11, State 1, Procedure sp_rename, Line 401 [Batch Start Line 2] Either the parameter @objname is ambiguous or the claimed @objtype (OBJECT) is wrong. Caution: Changing any part of an object name could break scripts and stored procedures.

这意味着 db11_new 已创建，并在 db11 中重命名，但未找到 db11_old，因此出现此错误。我在我的数据库中得到 db11 table。

第二个运行:

Caution: Changing any part of an object name could break scripts and stored procedures. Caution: Changing any part of an object name could break scripts and stored procedures.

这意味着所有内容都已创建并重命名。

第三个运行:

Msg 15335, Level 11, State 1, Procedure sp_rename, Line 509 [Batch Start Line 2] Error: The new name 'db11_old' is already in use as a OBJECT name and would cause a duplicate that is not permitted. Msg 15335, Level 11, State 1, Procedure sp_rename, Line 509 [Batch Start Line 2] Error: The new name 'db11' is already in use as a OBJECT name and would cause a duplicate that is not permitted.

所以每次重新运行你都会得到同样的错误。

我的建议是对db11_old做点什么。

Answer 4

感谢 Reboon 和 Dan Guzman 解决方案，改进不大：

CREATE PROCEDURE dbo.spA_Update_IP2Location_DB11_from_CSV
AS
BEGIN

IF  OBJECT_ID(N'[ip2location].[dbo].[db11_new]', 'U') IS NULL
    BEGIN

        CREATE TABLE [ip2location].[dbo].[db11_new](
            [ip_from] bigint NOT NULL,
            [ip_to] bigint NOT NULL,
            [country_code] nvarchar(2) NOT NULL,
            [country_name] nvarchar(64) NOT NULL,
            [region_name] nvarchar(128) NOT NULL,
            [city_name] nvarchar(128) NOT NULL,
            [latitude] float NOT NULL,
            [longitude] float NOT NULL,
            [zip_code] nvarchar(30) NOT NULL,
            [time_zone] nvarchar(8) NOT NULL,
        ) ON [PRIMARY]

        CREATE INDEX [ip_from] ON [ip2location].[dbo].[db11_new]([ip_from]) ON [PRIMARY]

    END
ELSE
    BEGIN
        delete from [ip2location].[dbo].[db11_new]
    END

BULK INSERT [ip2location].[dbo].[db11_new]
    FROM 'D:\IP2LOCATION-LITE-DB11.CSV'
    WITH
    ( FORMATFILE = 'C:\inetpub\wwwroot\ws\DB11_ip4.FMT' )

BEGIN TRANSACTION
    EXEC ip2location.dbo.sp_rename N'dbo.db11', N'db11_old'
    EXEC ip2location.dbo.sp_rename N'dbo.db11_new', N'db11'
    IF  OBJECT_ID(N'[ip2location].[dbo].[db11_old]', 'U') IS NOT NULL
        BEGIN
            DROP  TABLE ip2location.dbo.db11_old
        END
COMMIT TRANSACTION  
END

sql 服务器存储过程检查其他数据库中是否存在 table 并重命名

sql server stored procedure check if exists table in other database and rename it

sql-server

stored-procedures

table-rename