shrink vdi

After importing an empty database to the database, we found that the occupied table space was very large. After the shrink space cascade was executed, we found that the actual occupied space was less than 1%. However, an error message is displayed when the tablespace size is reduced. Alter database datafile 'd: \ ora_tablespace \ gcomm2.dbf 'resize 5000 m; Tip: ORA-03297: file contains used data beyond requested resize Value Cause 1: the size of the

Tags: style color ar using SP strong file data onSQL Server allows the user to set the database initial and maximum values, which can be configured by auto-grow or auto-shrink. With these configurations, we can prevent application modifications that could be caused by database space problems, or when SQL Server disk space is exhausted. In general, if the database is not very busy, the default setting is auto-grow, which can satisfy most of the require

Label:Recently discovered Web sites are inaccessible because the database server disk has no more space left. The log file was found to be 70%, and shrinking the log file failed.The reason for the online lookup is that no backup cannot shrink the log file.A temporary solution:Back up the transaction log, and then shrink the log file. (You can also shrink a log fi

Label:One, Check Database Integrity Task Check the allocation and structural integrity of the user and system tables, and indexes in the database, by running the D BCC CHECKDB Transact-SQL statement. Running DBCC ensures that any integrity problems with the database is reported, thereby allowing them to be addressed Later by a system administrator or database owner. Include indexes Check the integrity of the index pages as well as the table data pages. View TSQL Code -- include Inedexes DBCC CH

table. The occupied space is test1: 17 m, Test2: 9 m. Now we can compare the execution plan: Analyze table test1 compute statistics; analyze table Test2 compute statistics; The execution plans of two tables of the same size are quite different. In this case, we can still see the difference in small data volumes. In this case, the production system may have millions of data records, this efficiency difference is more obvious. These tables are deleted every day in our system, and

1 move Experiment SQL> Create Table my_objects_move tablespace assm as select * From all_objects where rownum Table created SQL> select Value 2 from V $ mystat, V $ statname 3 where V $ mystat. Statistic # = V $ statname. Statistic # 4 and V $ statname. Name = 'redo size '; Value ---------- 2317832 SQL> Delete from my_objects_move where object_name like '% C % '; 7546 rows deleted SQL> Delete from my_objects_move where object_name like '% u % '; 2959 rows deleted SQL> commit; Commit complete

1 move ExperimentSQL> create table my_objects_move tablespace ASSM as select * from all_objects where rownum Table created SQL> select value 2 from v $ mystat, v $ statname 3 where v $ mystat. statistic # = v $ statname. statistic # 4 and v $ statname. name = 'redo size '; VALUE ---------- 2317832 SQL> delete from my_objects_move where object_name like '% C % '; 7546 rows deleted SQL> delete from my_objects_move where object_name like '% U % '; 2959 rows deleted SQL> commit; Commit complete

; UIImage *newimage = nil; Uigraphicsbeginimagecontext (targetsize); CGRect thumbnailrect = Cgrectzero; Thumbnailrect.origin = Cgpointzero; ThumbnailRect.size.width = Targetsize.width; ThumbnailRect.size.height = targetsize.height; [Sourceimage Drawinrect:thumbnailrect]; NewImage = Uigraphicsgetimagefromcurrentimagecontext (); Uigraphicsendimagecontext (); return newimage; } 3. This is done, the preparation is completed, next, a method to achieve our lower pull amp

Recently a friend went to the computer city to buy a 16G u disk, the computer with the Golden Hill poison PA's U disk authentication test results show that the actual capacity of only 4 G, and suggested that it is shrinking u disk. Friends immediately went to buy a U disk where to find business, merchant wrong, obediently changed a true 16G capacity of U disk. What is the shrinking U disk? Today to share with you about the shrinking U disk knowledge and detection methods.

Tags: manual ado An operation understanding data file settings. com colDatabase shrinkage:Personal understanding, the database in the process of ordinary long-term operation of the log files will always be in a certain proportion in the increase, data files in the database after deleting a large amount of data does not necessarily reduce disk space, repeated operations will appear wasted space, so the shrinking database will be reflected.Suppose the database is set to

During the use of virtual machines, the size of Virtual Disks will increase. Even if you delete files from the disk, the size of the virtual disk will not be reduced. VMware has released the shrink feature in VMware Tools. After VMware Tools is installed, the Virtual Disk size can be effectively reduced when the guest operating system is windows without snapshot. However, if the guest operating system is Linux, the effect of this method is not good, a

1. OverviewNot only can you set the navigation bar in your Web site, but you can also set the navigation menu. Because the menu content is more, the same page display is more cluttered, so many designers have adopted a shrinking menu form.2. Technical HighlightsThis example mainly applies javascript to control the function of displaying and hiding the table, and realizes the function of the shrinking navigation menu. Click the navigation hyperlink to display the contents of the current menu, hid

The first step:ALTER DATABASE DbName set recovery simple;Step Two:DBCC SHRINKFILE (' dbname_log ');Step Three:ALTER DATABASE DbName set recovery full;--------------------------------------------------------------------------------------------------------------- ----------------------------------------------------Explain:In general, DBCC SHRINKFILE (' logical name of the log file of the database '); This one sentence can shrink the specified file. In o

Oracle's online segment contraction (on-line Segment Shrink) refers to the online defragmentation of fragments in the space, which has the following characteristics: Online, that is, DML is almost unaffected during segment compression (only a short time before the end, DML will be blocked) In-place operation, no extra space required Index remains available after shrink completes It can not only recover

server|sqlserver| Data | Database with command line: For database log files, such as: Database name: PUB; log file name Pub_log, currently 100M, to compress to 10M First step: Truncate the transaction log In SQL Query Analyzer, perform the backup LOG PUB with TRUNCATE_ONLY Step two: Shrink the database log to a specified size In SQL Query Analyzer, perform DBCC SHRINKFILE (pub_log,10) With Enterprise Manager: Right-click the database you want to

Recently there is a table (with the varchar (max) field) that takes up 240G of space and the space is not released after hundreds of thousands of of the historical data has been deleted. Then use DBCC CLEANTABLE (0,TB_NAME,100) to release the space left by the variable-length field after deleting the record, noting that the third parameter is the number of rows per transaction, It is strongly recommended that the default is 0 and the entire operation will be handled as a transaction! Full lock T

In SQL SERVER 2008, BACKUP Log with TRUNCATE_ONLY is no longer supported, and to shrink the database log, you first need to truncate the file by setting the database recovery mode to simple.The statements are as follows:Use DATABASENAME;GO--Truncate The log by changing the database recovery model to simple.ALTER DATABASE DATABASENAME SET RECOVERY simple;GO--Shrink The truncated log file to 1 MB.DBCC Shrinkf

A year ago, I do not know where to see the development of the auxiliary plug-in, installed, and then has been unknowingly used, one day re-installed system, the plug-in is gone, and can not remember his name,Search online for "auto-shrink Code", "VS Development essentials plugin" and so on have not been able to find this plugin. He was discovered by accident today.He is: C # outline 2012Especially write this article, share with you.When the code under

Recently in the application of the Android Market, see a lot of market category QQ app Bao do is the most perfect,In the project to implement its download management implementation, and the interface is as follows:Anti-compilation is used Expandablelistview, and how to load all the first deployment, and not click to shrink it?1, first load all expand:Mdownloadlistview.setadapter (Mdownloadadapter); for (int i = 0; i Reminder: Don't forget to determine

Check the data in the morning to find that there is only a few megabytes of hard disk space for a single piece of data. Habitual check log file, found that the log file unexpectedly increased to more than 350 GBBack up the log first, then shrink-------no change. (In fact, the log backup every 1 hours 1 block, normal running.)---------------------------------------------------------------------------Check log space usage and cannot truncate cause:DBCC