SELECT 表名=d.name, 字段名=a.name, 类型=b.name FROM syscolumns a left join systypes b on a.xtype=b.xusertype inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name='c_cc'
select c.name as '字段名', t.name as '数据类型' from syscolumns c, systypes t where c.xtype = t.xtype and c.id = object_id('表名')
我记得之前有位仁兄曾列举过一些MSSQL官方未公布的存储过程,里面有很多非常实用的功能: 未透露的存储过程 Introduction An extended stored procedure (xp) is a dynamic link library that runs directly in the address space of SQL Server and is programmed using the SQL Server Open Data Services API. You can run extended stored procedures from the Query Analyzer, for example, just as you would normal stored procedures. Extended stored procedures are used to extend the capabilities of SQL Server. You can take advantage of the many extended stored procedures that come with SQL Server, or you can write your own in a programming language such as C or C++.In this article, I want to tell you about some useful undocumented extended stored procedures. These extended stored procedures work with SQL Server 7.0, as well as with SQL Server 2000.sp_MSgetversion This extended stored procedure can be used to get the current version of Microsoft SQL Server. To get the current SQL Server version, runEXEC master..sp_MSgetversion Note. A more common way to retrieve the current SQL Server version (this way provides more information) is to use following SELECT statement:select @@version xp_dirtree This extended stored procedure can be used to get a list of all the folders for the folder named in the xp. To get a list of all the folders in the C:\MSSQL7 folder, run:EXEC master..xp_dirtree 'C:\MSSQL7' xp_enum_oledb_providers This extended stored procedure is used to list of all the available OLE DB providers. It returns Provider Name, Parse Name and Provider Description. To get a list of all OLE DB providers for your SQL Server, run:EXEC master..xp_enum_oledb_providers xp_enumcodepages This extended stored procedure can be used to list of all code pages, character sets and their description for your SQL Server. To see this, list, run:EXEC master..xp_enumcodepages xp_enumdsn This extended stored procedure returns a list of all System DSNs and their description. To get the list of System DSNs, run:EXEC master..xp_enumdsn xp_enumerrorlogs This extended stored procedure returns the list of all error logs with their last change date. To get the list of error logs, run:EXEC master..xp_enumerrorlogs xp_enumgroups This extended stored procedure returns the list of Windows NT groups and their description. To get the list of the Windows NT groups, run:EXEC master..xp_enumgroups xp_fileexist You can use this extended stored procedure to determine whether a particular file exists on the disk or not.Syntax:EXECUTE xp_fileexist filename [, file_exists INT OUTPUT] For example, to check whether the file boot.ini exists on disk c: or not, run:EXEC master..xp_fileexist 'c:\boot.ini' xp_fixeddrives This very useful extended stored procedure returns the list of all hard drives and the amount of free space in Mb for each hard drive.To see the list of drives, run:EXEC master..xp_fixeddrives xp_getnetname This extended stored procedure returns the WINS name of the SQL Server that you're connected to.To view the name, run:EXEC master..xp_getnetname xp_readerrorlog This extended stored procedure returns the content of the errorlog file. You can find the errorlog file in the C:\MSSQL7\Log directory, by default for SQL Server 7.0.To see the text of the errorlog file, run:EXEC master..xp_readerrorlog xp_regdeletekey This extended stored procedure will delete an entire key from the registry. You should use it very carefully.Syntax:EXECUTE xp_regdeletekey [@rootkey=]'rootkey', [@key=]'key' For example, to delete the key 'SOFTWARE\Test' from 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regdeletekey @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE\Test' xp_regdeletevalue This extended stored procedure will delete a particular value for a key in the registry. You should use it very carefully.Syntax:EXECUTE xp_regdeletevalue [@rootkey=]'rootkey', [@key=]'key', [@value_name=]'value_name' For example, to delete the value 'Testvalue' for the key 'SOFTWARE\Test' from 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regdeletevalue @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE\Test', @value_name='Testvalue' xp_regread This extended stored procedure is used to read from the registry.Syntax:EXECUTE xp_regread [@rootkey=]'rootkey', [@key=]'key' [, [@value_name=]'value_name'] [, [@value=]@value OUTPUT] For example, to read into the variable @test from the value 'Testvalue' from the key 'SOFTWARE\Test' from the 'HKEY_LOCAL_MACHINE', run:DECLARE @test varchar(20) EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE\Test', @value_name='Testvalue', @value=@test OUTPUT SELECT @test xp_regwrite This extended stored procedure is used to write to the registry.Syntax:EXECUTE xp_regwrite [@rootkey=]'rootkey', [@key=]'key', [@value_name=]'value_name', [@type=]'type', [@value=]'value' For example, to write the variable 'Test' to the 'Testvalue' value, key 'SOFTWARE\Test', 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regwrite @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE\Test', @value_name='Testvalue', @type='REG_SZ', @value='Test' xp_subdirs This extended stored procedure is used to get the list of folders for the folder named in the xp. In comparison with xp_dirtree, xp_subdirs returns only those directories whose depth = 1.This is the example:EXEC master..xp_subdirs 'C:\MSSQL7' Note.Keep in mind that these undocumented extended stored procedures are not officially supported by Microsoft, and that they may not be found in the next version of SQL Server.
select a.name as 表名,b.name as 字段,c.name as 数据类型 from sysobjects a,syscolumns b,systypes c where a.id=b.id and b.xtype=c.xtype and a.name=tablename
SELECT
表名=d.name,
字段名=a.name,
类型=b.name
FROM syscolumns a
left join systypes b on a.xtype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype='U'
and d.name='c_cc'
from syscolumns c, systypes t
where c.xtype = t.xtype
and c.id = object_id('表名')
未透露的存储过程
Introduction An extended stored procedure (xp) is a dynamic link library that runs
directly in the address space of SQL Server and is programmed using
the SQL Server Open Data Services API. You can run extended stored
procedures from the Query Analyzer, for example, just as you would
normal stored procedures. Extended stored procedures are used to extend
the capabilities of SQL Server. You can take advantage of the many
extended stored procedures that come with SQL Server, or you can
write your own in a programming language such as C or C++.In this article, I want to tell you about some useful undocumented
extended stored procedures. These extended stored procedures work
with SQL Server 7.0, as well as with SQL Server 2000.sp_MSgetversion
This extended stored procedure can be used to get the current version
of Microsoft SQL Server.
To get the current SQL Server version, runEXEC master..sp_MSgetversion
Note. A more common way to retrieve the current SQL Server version (this
way provides more information) is to use following SELECT statement:select @@version
xp_dirtree
This extended stored procedure can be used to get a list of all the
folders for the folder named in the xp.
To get a list of all the folders in the C:\MSSQL7 folder, run:EXEC master..xp_dirtree 'C:\MSSQL7'
xp_enum_oledb_providers
This extended stored procedure is used to list of all the available OLE DB
providers. It returns Provider Name, Parse Name and Provider Description.
To get a list of all OLE DB providers for your SQL Server, run:EXEC master..xp_enum_oledb_providers
xp_enumcodepages
This extended stored procedure can be used to list of all code pages,
character sets and their description for your SQL Server.
To see this, list, run:EXEC master..xp_enumcodepages
xp_enumdsn
This extended stored procedure returns a list of all System DSNs
and their description.
To get the list of System DSNs, run:EXEC master..xp_enumdsn
xp_enumerrorlogs
This extended stored procedure returns the list of all error logs
with their last change date.
To get the list of error logs, run:EXEC master..xp_enumerrorlogs
xp_enumgroups
This extended stored procedure returns the list of Windows NT groups
and their description.
To get the list of the Windows NT groups, run:EXEC master..xp_enumgroups
xp_fileexist
You can use this extended stored procedure to determine whether a
particular file exists on the disk or not.Syntax:EXECUTE xp_fileexist filename [, file_exists INT OUTPUT]
For example, to check whether the file boot.ini exists on disk c: or not, run:EXEC master..xp_fileexist 'c:\boot.ini'
xp_fixeddrives
This very useful extended stored procedure returns the list of all
hard drives and the amount of free space in Mb for each hard drive.To see the list of drives, run:EXEC master..xp_fixeddrives
xp_getnetname
This extended stored procedure returns the WINS name of the SQL Server
that you're connected to.To view the name, run:EXEC master..xp_getnetname
xp_readerrorlog
This extended stored procedure returns the content of the errorlog
file. You can find the errorlog file in the C:\MSSQL7\Log directory,
by default for SQL Server 7.0.To see the text of the errorlog file, run:EXEC master..xp_readerrorlog
xp_regdeletekey
This extended stored procedure will delete an entire key from the registry.
You should use it very carefully.Syntax:EXECUTE xp_regdeletekey [@rootkey=]'rootkey',
[@key=]'key'
For example, to delete the key 'SOFTWARE\Test' from 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regdeletekey
@rootkey='HKEY_LOCAL_MACHINE',
@key='SOFTWARE\Test'
xp_regdeletevalue
This extended stored procedure will delete a particular value for
a key in the registry. You should use it very carefully.Syntax:EXECUTE xp_regdeletevalue [@rootkey=]'rootkey',
[@key=]'key',
[@value_name=]'value_name'
For example, to delete the value 'Testvalue' for the key 'SOFTWARE\Test'
from 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regdeletevalue
@rootkey='HKEY_LOCAL_MACHINE',
@key='SOFTWARE\Test',
@value_name='Testvalue'
xp_regread
This extended stored procedure is used to read from the registry.Syntax:EXECUTE xp_regread [@rootkey=]'rootkey',
[@key=]'key'
[, [@value_name=]'value_name']
[, [@value=]@value OUTPUT]
For example, to read into the variable @test from the value 'Testvalue'
from the key 'SOFTWARE\Test' from the 'HKEY_LOCAL_MACHINE', run:DECLARE @test varchar(20)
EXEC master..xp_regread @rootkey='HKEY_LOCAL_MACHINE',
@key='SOFTWARE\Test',
@value_name='Testvalue',
@value=@test OUTPUT
SELECT @test
xp_regwrite
This extended stored procedure is used to write to the registry.Syntax:EXECUTE xp_regwrite [@rootkey=]'rootkey',
[@key=]'key',
[@value_name=]'value_name',
[@type=]'type',
[@value=]'value'
For example, to write the variable 'Test' to the 'Testvalue' value,
key 'SOFTWARE\Test', 'HKEY_LOCAL_MACHINE', run:EXEC master..xp_regwrite
@rootkey='HKEY_LOCAL_MACHINE',
@key='SOFTWARE\Test',
@value_name='Testvalue',
@type='REG_SZ',
@value='Test'
xp_subdirs
This extended stored procedure is used to get the list of folders for the
folder named in the xp. In comparison with xp_dirtree, xp_subdirs returns
only those directories whose depth = 1.This is the example:EXEC master..xp_subdirs 'C:\MSSQL7'
Note.Keep in mind that these undocumented extended stored procedures are not
officially supported by Microsoft, and that they may not be found in the
next version of SQL Server.
where a.id=b.id and b.xtype=c.xtype and a.name=tablename