ON OBJECT_NAME(fc.referenced_object_id) = tbl.Name ON fk.object_id = fc.constraint_object_id ,COL_NAME(fk.referenced_object_id, fc.referenced_column_id) as ReferencedColumnName ,COL_NAME(fk.parent_object_id, fc.parent_column_id) AS ColumnName
,OBJECT_NAME(fk.referenced_object_id) as ReferencedTableName ,SCHEMA_NAME(t.SCHEMA_ID) as ReferencedSchemaName ,OBJECT_NAME(fk.parent_object_id) as TableName Process and Szanto's answers didn't quite work for me, but I modified them to account for: WHERE OBJECT_NAME(parent_object_id) not in ('//tables that you do not wont to be truncated') Here is a script I wrote in order to automate the process. to resolve this the stored procedure should be called recursively, but I dont have the time to do it. SzP: commented out as the tables to be truncated might also contain tables that has foreign keys Backup up was recycled from previous execution.' Process specific table will be recycled from previous execution.' Table_TruncationStatement varchar(max) not null ID int not null identity(1,1) primary key,įK_CreationStatement varchar(max) not null,įK_DestructionStatement varchar(max) not null, CREATE STORAGE TABLE IF IT DOES NOT EXISTSĬREATE TABLE IF Not EXISTS(SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'Internal_FK_Definition_Storage') WHERE OBJECT_NAME(referenced_object_id) = BY OBJECT_NAME(parent_object_id) WHERE OBJECT_NAME(parent_object_id) not in ('//tables that you do not wont to be truncated') ON fk.referenced_column_id = lumn_idĪND fk.referenced_object_id= clm2.object_id OBJECT_NAME(referenced_object_id) as ReferencedTableName, OBJECT_NAME(parent_object_id) as TableName, OBJECT_NAME(constraint_object_id) as ConstraintName, SELECT ROW_NUMBER() OVER (ORDER BY OBJECT_NAME(parent_object_id), clm1.name) as ID, WITH NOCHECK ADD CONSTRAINT FOREIGN KEY() REFERENCES. 1 = Will create or truncate storage table
0 = Will not create or truncate storage table It is up to the user, to call this stored procedure multiple times on all tables in the correct orderįor the benefit of the public here is the updated script : CREATE PROCEDURE VARCHAR(64) This script truncates only the table specified as parameter.
It's actually better to not do any index maintenance than it is to do it wrong and using REORGANIZE is wrong in about 97% of the cases.The solution provided above did not work for me, but I liked the spirit of it so I modified a few things : It doesn't work the way you probably think it does and it actually does perpetuate fragmentation. Just don't ever use REORGANIZE for regular index maintenance. When you need to rebuild them for index maintenance, just create another file and file group, do a CREATE INDEX WITH (DROP_EXISTING = ON) and it'll move the index (the data, it's a CI) to the new file group and you can drop the old one, which gets rid of the extra space that you would have left in the Primary File Group. move each of them to their own file and filegroup. You should do the same with a couple of your largest clustered indexes. Or drop the table, the file, and the filegroup to be done with it.
If you want to almost instantly recover the file space from the unused test table, drop it, then drop the file in the file group and then rebuild both. Build another file group with a single file in it so that when you truncate the table, you don't need to shrink your primary file group. In the future, don't build such a test table on the PRIMARY file group. This won't help you now (you need to do the shrink-file thing that others are talking about) but do learn from this lesson.
#Truncate table sql server how to
However the disk space is not released back.Īny pointers on how to reclaim the disk space after truncating without shrinking database? We have truncated a huge table (50+ million) rows in sql server which was created for testing purpose.