0
私はデータベースの名前を変更しました。 I`m次のクエリ'sp_renamedb'の意味
EXEC sp_renamedb 'old_name', 'new_name'
Here, I want to meaning of
sp_renamedb
A
答えて
1
0
Sp_Rename、あなたは、ストアドプロシージャは、データベースの名前を変更し
create procedure sys.sp_rename
@objname nvarchar(1035), -- up to 4-part "old" name
@newname sysname, -- one-part new name
@objtype varchar(13) = null -- identifying the name
as
/* DOCUMENTATION:
[1] To rename a table, the @objname (meaning OldName) parm can be
passed in totally unqualified or fully qualified.
[2] The SA or DBO can rename objects owned by lesser users,
without the need for SetUser.
[3] The Owner portion of a qualified name can usually be
passed in in the omitted form (as in MyDb..MyTab or MyTab). The
typical exception is when the SA/DBO is trying to rename a table
where the @objname is present twice in sysobjects as a table
owned only by two different lesser users; requiring an explicit
owner qualifier in @objname.
[4] An unspecified Owner qualifier will default to the
current user if doing so will either resolve what would
otherwise be an ambiguity within @objtype, or will result
in exactly one match.
[5] If Database is part of the qualified @objname,
then it must match the current database. The @newname parm can
never be qualified.
[6] Here are the valid @objtype values. They correspond to
system tables which track each type:
'column' 'database' 'index' 'object' 'userdatatype' 'statistics'
The @objtype parm is sometimes required. It is always required
for databases. It is required whenever ambiguities would
otherwise exist. Explicit use of @objtype is always encouraged.
[7] Parms can use quoted_identifiers. For example:
Execute sp_rename 'amy."his table"','"her table"','object'
*/
set nocount on
set ansi_padding on
declare @objtypeIN varchar(13),
@objtypeINOrig varchar(13),
@objnameLen int,
@CurrentDb sysname,
@CountNumNodes int,
@UnqualOldName sysname,
@QualName1 sysname,
@QualName2 sysname,
@QualName3 sysname,
@OwnAndObjName nvarchar(517), -- "[owner].[object]"
@SchemaAndTypeName nvarchar(517), -- "[schema].[type]"
@objid int,
@xtype nchar(2),
@indexstatsid int,
@colid int,
@cnstid int,
@xusertype int,
@schid int,
@objid_tmp int,
@xtype_tmp nchar(2),
@retcode int,
@published bit -- Indicates table is used in replication
-- initial (non-null) settings
select @CurrentDb = db_name(),
@objtypeIN = @objtype,
@objtypeINOrig = @objtype
-- make type case insensitive
select @objtype = lower(@objtypeIN collate Latin1_General_CI_AS)
------------------------------------------------------------------------
------------------- PHASE 10: Simple parm edits ---------------------
------------------------------------------------------------------------
-- Valid rename-type param?
if (@objtype is not null AND
@objtype not in ('column', 'database', 'index', 'object', 'userdatatype', 'statistics'))
begin
raiserror(15249,-1,-1,@objtypeIN)
return 1
end
-- null names?
if (@newname IS null)
begin
raiserror(15223,-1,11,'NewName')
return 1
end
if (@objname IS null)
begin
raiserror(15223,-1,-1,'OldName')
return 1
end
-- Is NewName minimally valid?
exec @retcode = sp_validname @newname
if @retcode <> 0
begin
raiserror(15224,-1,15,@newname)
return 1
end
-- Parse apart the perhaps dots-qualified old name.
select @UnqualOldName = parsename(@objname, 1),
@QualName1 = parsename(@objname, 2),
@QualName2 = parsename(@objname, 3),
@QualName3 = parsename(@objname, 4)
if (@UnqualOldName IS Null)
begin
raiserror(15253,-1,-1,@objname)
return 1
end
-- count name parts --
select @CountNumNodes = (case
when @QualName3 is not null then 4
when @QualName2 is not null then 3
when @QualName1 is not null then 2
else 1
end)
if (@objtype = 'database' AND @CountNumNodes > 1)
begin
raiserror(15395,-1,20,@objtypeIN)
return 1
end
if (@objtype in ('object','userdatatype') AND @CountNumNodes > 3)
begin
raiserror(15225,-1,-1,@objname, @CurrentDb, @objtypeIN)
return 1
end
---------------------------------------------------------------------------
------------------------ PHASE 15: Lock Down Checks ------------------
---------------------------------------------------------------------------
-- Check if this is an SDS session before applying checks. This is equivalent to chec eflSystemObjects
if (serverproperty('EngineEdition') = 5)
begin
if ((@objtype = 'object' and (@QualName3 is not null or (@QualName2 is not null and @QualName2 != @CurrentDb))) or
(@objtype != 'database' and (@QualName3 is not null and @QualName3 != @CurrentDb)))
begin
select @objnameLen = len(@objname)
raiserror(40515,-1,-1, @objnameLen, @objname)
return 1
end
if (@objtype = 'database')
begin
raiserror(40514,-1,-1, 'Renaming a given database with sp_rename')
return 1
end
end
---------------------------------------------------------------------------
---------------------- PHASE 20: Settle Parm1ItemType ------------------
---------------------------------------------------------------------------
------------- database?
if (@objtype = 'database')
begin
execute @retcode = sys.sp_renamedb @UnqualOldName ,@newname -- de-docu old sproc
if @retcode <> 0
return 1
return 0
end
BEGIN TRANSACTION
------------ type?
if (@objtype = 'userdatatype' or @objtypeIN is null)
begin
select @xusertype = user_type_id, @schid = schema_id
from sys.types where user_type_id = type_id(@objname)
-- Lock scalar type exclusively and check permissions
if not (@xusertype is null)
begin
-- cannot pass @objname as it is nvarchar(1035) and Invoke fails %%ScalarType does not compile with four part name.
-- cross db type resolution is not allowed (already taken care of by type_id) so only two part name is required.
if (@QualName1 is not null)
select @SchemaAndTypeName = QuoteName(@QualName1) + '.' + QuoteName(@UnqualOldName)
else
select @SchemaAndTypeName = QuoteName(@UnqualOldName)
EXEC %%ScalarType(MultiName = @SchemaAndTypeName).LockMatchID(ID = @xusertype, Exclusive = 1)
if (@@error <> 0)
select @xusertype = null
end
-- check for wrong param
if ((@xusertype is not null AND @objtype <> 'userdatatype') OR
(@xusertype is null AND @objtype = 'userdatatype'))
begin
COMMIT TRANSACTION
raiserror(15248,-1,-1,@objtypeIN)
return 1
end
if not (@xusertype is null)
select @objtype = 'userdatatype'
end
-- assuming column/index-name, obtain object/column id's
if (@objtype in ('column', 'index', 'statistics') or @objtypeIN is null)
begin
if @QualName2 is not null
select @objid = object_id(QuoteName(@QualName2) +'.'+ QuoteName(@QualName1))
else
select @objid = object_id(QuoteName(@QualName1))
if not (@objid is null) -- nice try?
begin
-- obtain owner-qual object name
select @schid = ObjectProperty(@objid, 'schemaid')
select @OwnAndObjName = QuoteName(schema_name(@schid))+'.'+QuoteName(object_name(@objid))
EXEC %%Object(MultiName = @OwnAndObjName).LockMatchID(ID = @objid, Exclusive = 1, BindInternal = 0)
if @@error <> 0
select @objid = null
else
select @xtype = type from sys.objects where object_id = @objid
end
end
------------ column?
if (@objtype = 'column' or @objtypeIN is null)
begin
-- find column
if (@xtype in ('U','V'))
select @colid = column_id from sys.columns
where object_id = @objid and name = @UnqualOldName
-- check for wrong param
if ((@colid is not null AND @objtype <> 'column') OR
(@colid is null AND @objtype = 'column'))
begin
COMMIT TRANSACTION
raiserror(15248,-1,-1,@objtypeIN)
return 1
end
-- remember if we've found a column
if not (@colid is null)
begin
select @published = is_published from sys.objects where object_id = @objid
if @published = 0
select @published = is_merge_published from sys.tables where object_id = @objid
if (@published <> 0)
begin
COMMIT TRANSACTION
raiserror(15051,-1,-1)
return (0)
end
select @objtype = 'column'
end
end
------------ index?
if (@objtype = 'index' or @objtypeIN is null)
begin
-- find index
if (@xtype in ('U','V'))
select @indexstatsid = indexproperty(@objid, @UnqualOldName, 'IndexID')
if (@indexstatsid = 0)
set @indexstatsid = NULL;
-- find columnstore index where there is no stats
if (@indexstatsid is null)
select @indexstatsid = index_id from sys.indexes
where object_id = @objid and name = @UnqualOldName and (type = 5 or type = 6)
-- check for wrong param
if ((@indexstatsid is not null AND @objtype <> 'index') OR
(@indexstatsid is null AND @objtype = 'index'))
begin
COMMIT TRANSACTION
raiserror(15248,-1,-1,@objtypeIN)
return 1
end
if not (@indexstatsid is null)
begin
select @objtype = 'index'
select @cnstid = object_id, @xtype = type from sys.objects
where name = @UnqualOldName and parent_object_id = @objid and type in ('PK','UQ')
end
end
------------ statistics?
if (@objtype = 'statistics')
begin
select @indexstatsid = stats_id from sys.stats
where object_id = @objid and name = @UnqualOldName
-- check for wrong param
if (@indexstatsid is null)
begin
COMMIT TRANSACTION
raiserror(15248,-1,-1,@objtypeIN)
return 1
end
end
------------ object?
if (@objtype = 'object' or @objtypeIN is null)
begin
-- get object id, type
select @objid_tmp = object_id(@objname)
if not (@objid_tmp is null)
begin
-- obtain owner-qual object name
select @schid = ObjectProperty(@objid_tmp, 'schemaid')
select @OwnAndObjName = QuoteName(schema_name(@schid))+'.'+QuoteName(object_name(@objid_tmp))
EXEC %%Object(MultiName = @OwnAndObjName).LockMatchID(ID = @objid_tmp, Exclusive = 1, BindInternal = 0)
if @@error <> 0
select @objid_tmp = null
end
select @xtype_tmp = type
from sys.objects where object_id = @objid_tmp
-- if object is a system table, a Scalar function, or a table valued function, skip it.
-- Cannot rename system table
if @xtype_tmp = 'S'
select @objid_tmp = NULL
-- Locks parent object and increments schema_ver
if not (@objid_tmp is null)
begin
if (@xtype_tmp in ('U'))
begin
select @published = is_merge_published | is_published from sys.tables where object_id = @objid_tmp
if (@published <> 0)
begin
COMMIT TRANSACTION
raiserror(15051,-1,-1)
return (0)
end
end
-- parent already locked via locking object
end
-- check for wrong param
if ((@objid_tmp is not null AND @objtype <> 'object') OR
(@objid_tmp is null AND @objtype = 'object'))
begin
COMMIT TRANSACTION
raiserror(15248,-1,-1,@objtypeIN)
return 1
end
if not (@objid_tmp is null)
select @objtype = 'object', @objid = @objid_tmp, @xtype = @xtype_tmp
end
---------------------------------------------------------------------
------------------- PHASE 30: More parm edits --------------------
---------------------------------------------------------------------
-- item type determined?
if (@objtype is null)
begin
COMMIT TRANSACTION
raiserror(15225,-1,-1,@objname, @CurrentDb, @objtypeIN)
return 1
end
-- was the original name valid given this type?
if (@objtype in ('object','userdatatype') AND @CountNumNodes > 3)
begin
COMMIT TRANSACTION
raiserror(15225,-1,-1,@objname, @CurrentDb, @objtypeIN)
return 1
end
-- verify db qualifier is current db
if (@objtype in ('object','userdatatype'))
select @QualName3 = @QualName2
if (isnull(@QualName3, @CurrentDb) <> @CurrentDb)
begin
COMMIT TRANSACTION
raiserror(15333,-1,-1,@QualName3)
return 1
end
if (@objtype <> 'userdatatype')
begin
-- check if system object
select @schid = ObjectProperty(@objid, 'schemaid')
if (ObjectProperty(@objid, 'IsMSShipped') = 1 OR
ObjectProperty(@objid, 'IsSystemTable') = 1)
begin
COMMIT TRANSACTION
raiserror(15001,-1,-1, @objname)
return 1
end
end
-- System created Date Correlation view and its columns/indexes cannot be renamed.
if (@objid is not null
AND @xtype = 'V '
AND 1 = Isnull((select is_date_correlation_view from sys.views where object_id = @objid), 0)
)
begin
COMMIT TRANSACTION
raiserror(15168,-1,-1, @objname)
return 1
end
-- FileTable system defined objects and columns cannot be renamed.
if ((@objtype = 'object'
AND exists (select object_id from sys.filetable_system_defined_objects where object_id = @objid))
OR
(@objtype = 'index'
AND exists (select object_id from sys.filetable_system_defined_objects where object_id = @cnstid))
OR
(@objtype = 'column'
AND exists (select object_id from sys.tables where object_id = @objid and is_filetable = 1)))
begin
COMMIT TRANSACTION
set @objnameLen = len(@objname);
raiserror(3865,-1,-1,@objnameLen,@objname)
return 1
end
-- make sure orig no longer shows null
if @objtypeIN is null
select @objtypeIN = @objtype
-- Check for name clashing with existing name(s)
if (@newname <> @UnqualOldName)
begin
-- column name clash?
if (@objtype = 'column')
if (ColumnProperty(@objid, @newname, 'isidentity') is not null)
select @UnqualOldName = NULL
-- index name clash?
if ((@objtype = 'object' AND @xtype in ('PK','UQ'))
OR @objtype = 'index')
if indexproperty(@objid, @newname, 'IndexID') is not null
select @UnqualOldName = NULL
-- cnst name clash?
if (@objtype = 'object' OR @cnstid IS NOT null)
if (object_id(QuoteName(schema_name(@schid)) +'.'+ QuoteName(@newname), 'local') is not null)
select @UnqualOldName = NULL
-- stop on clash
if (@UnqualOldName is null)
begin
COMMIT TRANSACTION
raiserror(15335,-1,-1,@newname,@objtypeIN)
return 1
end
end
--------------------------------------------------------------------------
-------------------- PHASE 32: Temporay Table Isssue -------------------
--------------------------------------------------------------------------
-- Disallow renaming object to or from a temp name (starts with #)
if (@objtype = 'object' AND
(substring(@newname,1,1) = N'#' OR
substring(object_name(@objid),1,1) = N'#'))
begin
COMMIT TRANSACTION
raiserror(15600,-1,-1, 'sys.sp_rename')
return 1
end
--------------------------------------------------------------------------
-------------------- PHASE 34: Cautionary messages --------------------
--------------------------------------------------------------------------
if @objtype = 'column'
begin
-- Check for Dependencies: No column rename if enforced dependency on column
if exists (select * from sys.sql_dependencies d where
d.referenced_major_id = @objid
AND d.referenced_minor_id = @colid
AND d.class = 1
-- filter dependencies where the dependent object d.object_id is a date correlation view.
-- Date correlation view owner is the same as of any of the tables they are dependent upon so user having alter access
-- to any of the participating tables will have catalog view access to the MPIV for the following query to succeed.
AND 0 = Isnull((select is_date_correlation_view from sys.views o where o.object_id = d.object_id), 0)
)
begin
COMMIT TRANSACTION
raiserror(15336,-1,-1, @objname)
return 1
end
end
else if @objtype = 'object'
begin
-- Check for Dependencies: No RENAME or CHANGEOWNER of OBJECT when exists:
if exists (select * from sys.sql_dependencies d where
d.referenced_major_id = @objid -- A dependency on this object
AND d.class > 0 -- that is enforced
AND @objid <> d.object_id -- that isn't a self-reference (self-references don't use object name)
-- filter dependencies where the dependent object d.object_id is a date correlation view.
AND 0 = Isnull((select is_date_correlation_view from sys.views o where o.object_id = d.object_id), 0)
-- And isn't a reference from a child object (also don't use object name)
-- As we might not have permission on the dependent object, we list all the child
-- objects of the object to be renamed and make sure that child object id is not the depending object here.
AND 0 = (select count(*) from sys.objects o where o.parent_object_id = @objid and o.object_id = d.object_id)
)
begin
COMMIT TRANSACTION
raiserror(15336,-1,-1, @objname)
return 1
end
end
-- WITH DEFERRED RESOLUTION, sql_dependencies IS NOT VERY ACCURATE, SO WE ALSO
-- RAISE THIS WARNING **UNCONDITIONALLY**, EVEN FOR NON-OBJECT RENAMES
raiserror(15477,-1,-1)
-- warn about dependencies...
if (@objtype = 'objects'
and exists (select * from sys.sql_dependencies d where
d.referenced_major_id = @objid
-- filter dependencies where the dependent object d.object_id is a date correlation view.
AND 0 = Isnull((select is_date_correlation_view from sys.views o where o.object_id = d.object_id), 0)
))
raiserror(15337,-1,-1)
--------------------------------------------------------------------------
--------------------- PHASE 40: Update system tables ------------------
--------------------------------------------------------------------------
-- DO THE UPDATES --
if (@objtype = 'userdatatype') -------- change type name
begin
EXEC %%ScalarType(ID = @xusertype).SetName(Name = @newname)
if @@error <> 0
begin
COMMIT TRANSACTION
raiserror(15335,-1,-1,@newname,@objtypeIN)
return 1
end
-- EMDEventType(x_eet_Rename), EMDUniversalClass(x_eunc_Type), src major id, src minor id, src name
-- -1 means ignore target stuff, target major id, target minor id, target name,
-- # of parameters, 5 parameters
EXEC %%System().FireTrigger(ID = 241, ID = 6, ID = @xusertype, ID = 0, Value = @UnqualOldName,
ID = -1, ID = 0, ID = 0, Value = NULL,
ID = 3, Value = @objname, Value = @newname, Value = @objtypeINOrig, Value = NULL, Value = NULL, Value = NULL, Value = NULL)
end
else if (@objtype = 'object') -------- change object name
begin
-- update the object name
EXEC %%Object(ID = @objid).SetName(Name = @newname)
if @@error <> 0
begin
COMMIT TRANSACTION
raiserror(15335,-1,-1,@newname,@objtypeIN)
return 1
end
-- EMDEventType(x_eet_Rename), EMDUniversalClass(x_eunc_Table), src major id, src minor id, src name
-- -1 means ignore target stuff, target major id, target minor id, target name,
-- # of parameters, 5 parameters
EXEC %%System().FireTrigger(ID = 241, ID = 1, ID = @objid, ID = 0, Value = @UnqualOldName,
ID = -1, ID = 0, ID = 0, Value = NULL, ID = 3,
Value = @objname, Value = @newname, Value = @objtypeINOrig, Value = NULL, Value = NULL, Value = NULL, Value = NULL)
end
else if (@objtype in ('index', 'statistics')) -------- change index name
begin
-- update the index or statistics name, and change object name if cnst
declare @last_error int
EXEC %%IndexOrStats(ObjectID = @objid, Name = @UnqualOldName).SetName(Name = @newname)
set @last_error = @@error
if @last_error <> 0
begin
COMMIT TRANSACTION
declare @len int = 2*len(@newname)
if @last_error = 4
raiserror(12802,-1,2, @len, @newname, 100)
else
raiserror(15335,-1,-1,@newname,@objtypeIN)
return 1
end
-- EMDEventType(x_eet_Rename), EMDUniversalClass(x_eunc_Index | x_eunc_Stats), src major id, src minor id, src name
-- -1 means ignore target stuff, target major id, target minor id, target name,
-- # of parameters, 5 parameters
declare @eunc int
if (@objtype = 'index')
set @eunc = 7;
else if (@objtype = 'statistics')
set @eunc = 9;
EXEC %%System().FireTrigger(ID = 241, ID = @eunc, ID = @objid, ID = @indexstatsid, Value = @UnqualOldName,
ID = 1, ID = @objid, ID = 0, Value = NULL, ID = 3,
Value = @objname, Value = @newname, Value = @objtypeINOrig, Value = NULL, Value = NULL, Value = NULL, Value = NULL)
end
else if (@objtype = 'column') -------- change column name
begin
EXEC %%ColumnEx(ObjectID = @objid, Name = @UnqualOldName).SetName(Name = @newname)
if @@error <> 0
begin
COMMIT TRANSACTION
return 1
end
-- EMDEventType(x_eet_Rename), EMDUniversalClass(x_eunc_Table), src major id, src minor id, src name
-- -1 means ignore target stuff, target major id, target minor id, target name,
-- # of parameters, 5 parameters
EXEC %%System().FireTrigger(ID = 241, ID = 1, ID = @objid, ID = @colid, Value = @UnqualOldName,
ID = 1, ID = @objid, ID = 0, Value = NULL, ID = 3,
Value = @objname, Value = @newname, Value = @objtypeINOrig, Value = NULL, Value = NULL, Value = NULL, Value = NULL)
end
COMMIT TRANSACTION
-- Success --
return 0 -- sp_rename
+0
答えGameiswarのためにありがとう..私は "sp_helptext 'sp_rename'"しかし、私はそれを理解することができません..それを説明してください.. – PONRAJ
+1
** sp_helptext **は、ストアプロシージャで書いた実際のコードを返します。ここで、sp_renameは上記のようにデータベース名を変更します。 – Husen
+0
コメントありがとうございますsaddam_msp。私はもう一つの疑問を持っている..？ SQL Server上でログファイルを使用するのは何ですか？それはどこにある？私がログファイルを削除した場合、どうなるでしょうか？ – PONRAJ
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を与える
以下のような
sp_helptextを使用して取得することができ、あなたはいくつかのことを期待していますそれ以外のものは – TheGameiswar正しく聞かれます。私は 'sp'のフォームをしたいです..あなたに感謝u Gameiswar – PONRAJ