Transact-SQL子查询调用函数语法不正确_Sql_Sql Server_Tsql_Syntax Error

Transact-SQL子查询调用函数语法不正确

sql sql-server tsql

Transact-SQL子查询调用函数语法不正确,sql,sql-server,tsql,syntax-error,Sql,Sql Server,Tsql,Syntax Error,我在“.”附近得到了不正确的语法，似乎无法在以下代码中确定原因： select o.object_id, (select top 1 Zone from dbo.getzone(o.object_id)) as Zone from object as o getzone是一个表值函数，当我直接引用它时，或者如果我把一个特定的object_id放进去时，它可以很好地工作，但是每次我试图使它成为动态的，我都会得到语法错误我遗漏了什么？修复您的别名 select o.object_id,

我在“.”附近得到了不正确的语法，似乎无法在以下代码中确定原因：

select 
o.object_id,
(select top 1 Zone from dbo.getzone(o.object_id)) as Zone from object as o

getzone是一个表值函数，当我直接引用它时，或者如果我把一个特定的object_id放进去时，它可以很好地工作，但是每次我试图使它成为动态的，我都会得到语法错误

我遗漏了什么？

修复您的别名

select  o.object_id, 
        (select top 1 Zone from dbo.getzone(o.object_id)) as Zone 
from object AS o

修复你的别名

select  o.object_id, 
        (select top 1 Zone from dbo.getzone(o.object_id)) as Zone 
from object AS o

修复你的别名

select  o.object_id, 
        (select top 1 Zone from dbo.getzone(o.object_id)) as Zone 
from object AS o

修复你的别名

select  o.object_id, 
        (select top 1 Zone from dbo.getzone(o.object_id)) as Zone 
from object AS o

你不能那样做。您需要一个只返回一个结果的标量版本。如果需要，它可以只是一个包装器脚本。大概是这样的：

CREATE FUNCTION [dbo].[getSingleZone](@object_id varchar(20))
RETURNS varchar(20)
AS
BEGIN
DECLARE @Zone varchar(20)
select @Zone = max(Zone) from dbo.getzone(@object_id)
return @Zone 
END

select 
o.object_id,
dbo.getSingleZone(o.object_id) as Zone from object o

我不知道您的数据类型，所以我猜。

您不能这样做。您需要一个只返回一个结果的标量版本。如果需要，它可以只是一个包装器脚本。大概是这样的：

CREATE FUNCTION [dbo].[getSingleZone](@object_id varchar(20))
RETURNS varchar(20)
AS
BEGIN
DECLARE @Zone varchar(20)
select @Zone = max(Zone) from dbo.getzone(@object_id)
return @Zone 
END

select 
o.object_id,
dbo.getSingleZone(o.object_id) as Zone from object o

我不知道您的数据类型，所以我猜。

您不能这样做。您需要一个只返回一个结果的标量版本。如果需要，它可以只是一个包装器脚本。大概是这样的：

CREATE FUNCTION [dbo].[getSingleZone](@object_id varchar(20))
RETURNS varchar(20)
AS
BEGIN
DECLARE @Zone varchar(20)
select @Zone = max(Zone) from dbo.getzone(@object_id)
return @Zone 
END

select 
o.object_id,
dbo.getSingleZone(o.object_id) as Zone from object o

我不知道您的数据类型，所以我猜。

您不能这样做。您需要一个只返回一个结果的标量版本。如果需要，它可以只是一个包装器脚本。大概是这样的：

CREATE FUNCTION [dbo].[getSingleZone](@object_id varchar(20))
RETURNS varchar(20)
AS
BEGIN
DECLARE @Zone varchar(20)
select @Zone = max(Zone) from dbo.getzone(@object_id)
return @Zone 
END

select 
o.object_id,
dbo.getSingleZone(o.object_id) as Zone from object o

我不知道您的数据类型，所以我猜。

也许我忽略了这个问题，但这似乎有效。使用内置函数的名称（

OBJECT\u ID

）作为列名可能没有帮助

下面的示例或代码

-- TVF without parameter.
create function dbo.GetZone()
  returns table as
  return
    select Id, Letter
      from
      ( values ( 1, 'Aleph' ), ( 2, 'Beth' ), ( 3, 'Gimmel' ) ) as Letters( Id, Letter );
go

-- TVF with parameter;
create function dbo.GetZone2( @Id as Int )
  returns table as
  return
    select Id, Letter
      from dbo.GetZone() where Id = @Id;
go

select * from dbo.GetZone();
select * from dbo.GetZone2( 2 );

-- Sample table and data.
declare @Objects as table ( Id Int Identity, Letter VarChar(16) );
insert into @Objects values ( 'Alpha' ), ( 'Beta' ), ( 'Gamma' );
select * from @Objects;

-- Correlated subquery.
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone( ) where Id = O.Id ) as [Hebrew]
  from @Objects as O;
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone2( O.Id ) ) as [Hebrew]
  from @Objects as O;

-- Houseclean.
drop function dbo.GetZone;
drop function dbo.GetZone2;

也许我忽略了这个问题，但这似乎有效。使用内置函数的名称（

OBJECT\u ID

）作为列名可能没有帮助

下面的示例或代码

-- TVF without parameter.
create function dbo.GetZone()
  returns table as
  return
    select Id, Letter
      from
      ( values ( 1, 'Aleph' ), ( 2, 'Beth' ), ( 3, 'Gimmel' ) ) as Letters( Id, Letter );
go

-- TVF with parameter;
create function dbo.GetZone2( @Id as Int )
  returns table as
  return
    select Id, Letter
      from dbo.GetZone() where Id = @Id;
go

select * from dbo.GetZone();
select * from dbo.GetZone2( 2 );

-- Sample table and data.
declare @Objects as table ( Id Int Identity, Letter VarChar(16) );
insert into @Objects values ( 'Alpha' ), ( 'Beta' ), ( 'Gamma' );
select * from @Objects;

-- Correlated subquery.
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone( ) where Id = O.Id ) as [Hebrew]
  from @Objects as O;
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone2( O.Id ) ) as [Hebrew]
  from @Objects as O;

-- Houseclean.
drop function dbo.GetZone;
drop function dbo.GetZone2;

也许我忽略了这个问题，但这似乎有效。使用内置函数的名称（

OBJECT\u ID

）作为列名可能没有帮助

下面的示例或代码

-- TVF without parameter.
create function dbo.GetZone()
  returns table as
  return
    select Id, Letter
      from
      ( values ( 1, 'Aleph' ), ( 2, 'Beth' ), ( 3, 'Gimmel' ) ) as Letters( Id, Letter );
go

-- TVF with parameter;
create function dbo.GetZone2( @Id as Int )
  returns table as
  return
    select Id, Letter
      from dbo.GetZone() where Id = @Id;
go

select * from dbo.GetZone();
select * from dbo.GetZone2( 2 );

-- Sample table and data.
declare @Objects as table ( Id Int Identity, Letter VarChar(16) );
insert into @Objects values ( 'Alpha' ), ( 'Beta' ), ( 'Gamma' );
select * from @Objects;

-- Correlated subquery.
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone( ) where Id = O.Id ) as [Hebrew]
  from @Objects as O;
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone2( O.Id ) ) as [Hebrew]
  from @Objects as O;

-- Houseclean.
drop function dbo.GetZone;
drop function dbo.GetZone2;

也许我忽略了这个问题，但这似乎有效。使用内置函数的名称（

OBJECT\u ID

）作为列名可能没有帮助

下面的示例或代码

-- TVF without parameter.
create function dbo.GetZone()
  returns table as
  return
    select Id, Letter
      from
      ( values ( 1, 'Aleph' ), ( 2, 'Beth' ), ( 3, 'Gimmel' ) ) as Letters( Id, Letter );
go

-- TVF with parameter;
create function dbo.GetZone2( @Id as Int )
  returns table as
  return
    select Id, Letter
      from dbo.GetZone() where Id = @Id;
go

select * from dbo.GetZone();
select * from dbo.GetZone2( 2 );

-- Sample table and data.
declare @Objects as table ( Id Int Identity, Letter VarChar(16) );
insert into @Objects values ( 'Alpha' ), ( 'Beta' ), ( 'Gamma' );
select * from @Objects;

-- Correlated subquery.
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone( ) where Id = O.Id ) as [Hebrew]
  from @Objects as O;
select O.Id, O.Letter as [Greek],
  ( select top 1 Letter from dbo.GetZone2( O.Id ) ) as [Hebrew]
  from @Objects as O;

-- Houseclean.
drop function dbo.GetZone;
drop function dbo.GetZone2;

你的别名错了。语句的最后一部分应该说“from object o”如果您是正确的，那么object的别名就不正确了。然而，改变这一点并不能帮助解决在这部分代码中引发的实际语法错误：dbo.getzone（o.object_id）我将尝试@Necreax所说的，但您也可以尝试在对象表和object_id列周围放上括号。这两个词都是保留词，它可能不喜欢。示例[object]，而不仅仅是object。您的别名错误。语句的最后一部分应该说“from object o”如果您是正确的，那么object的别名就不正确了。然而，改变这一点并不能帮助解决在这部分代码中引发的实际语法错误：dbo.getzone（o.object_id）我将尝试@Necreax所说的，但您也可以尝试在对象表和object_id列周围放上括号。这两个词都是保留词，它可能不喜欢。示例[object]，而不仅仅是object。您的别名错误。语句的最后一部分应该说“from object o”如果您是正确的，那么object的别名就不正确了。然而，改变这一点并不能帮助解决在这部分代码中引发的实际语法错误：dbo.getzone（o.object_id）我将尝试@Necreax所说的，但您也可以尝试在对象表和object_id列周围放上括号。这两个词都是保留词，它可能不喜欢。示例[object]，而不仅仅是object。您的别名错误。语句的最后一部分应该说“from object o”如果您是正确的，那么object的别名就不正确了。然而，改变这一点并不能帮助解决在这部分代码中引发的实际语法错误：dbo.getzone（o.object_id）我将尝试@Necreax所说的，但您也可以尝试在对象表和object_id列周围放上括号。这两个词都是保留词，它可能不喜欢。示例[对象]而不仅仅是对象。感谢您的关注。尽管如此，别名似乎不是问题所在，因为我仍然在函数调用中收到语法错误调用。感谢您捕捉到这一点。尽管如此，别名似乎不是问题所在，因为我仍然在函数调用中收到语法错误调用。感谢您捕捉到这一点。尽管如此，别名似乎不是问题所在，因为我仍然在函数调用中收到语法错误调用。感谢您捕捉到这一点。尽管如此，别名似乎不是问题所在，因为我仍然在函数调用中收到语法错误调用。