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You can add your own scripts to the PE system by modifying one of the Startnet.cmd, Unattend.xml, and Winpeshl.ini files. We can create our own custom Winpeshl.ini files so that we can run our own applications. Now follow the actual combat. Before

Summary Atomic transaction processing is a widely known technique for ensuring consistency in the event of a failure. The ACID properties of atomic transactions ensure that state consistency is maintained in even complex business applications,

Hibernate is an excellent Java persistence layer solution and is today's mainstream object-relational mapping (ORM) tool For hibernate just studied for a week, as a Java beginner, also a bit of their own feelings want to share out, if this article

Redo logs describe all changes to a block of data. This section mainly describes some of the operations when the database is opened to write logs. 3.1 Atomic Modifications The most basic operation of a database is to modify a block of data in an

There are some configuration items that affect how MySQL synchronizes data to disk and how to do recovery operations. This write operation has a great impact on performance because it is designed to expensive I/O operations, usually ensuring that

On the Internet, the first page of a search engine returning results is often considered priceless, hundreds, or even thousands of sites sharing the same keyword, but only nearly 10 of them can appear there. What's even more annoying is that we

I. Theoretical part The materialized view of Oracle is a database pair that includes a query result, which is a local copy of the remote data, or is used to generate a summary table based on the sum of the data tables. Materialized views store data

By comparing the partitioned table and the normal table, we simply tested the performance and maintained the index when the partitioned table existed, and finally we had to say The use of partitioned tables may not always improve performance,

Personal experiments sometimes use large tables, where you can share the dba_objects to create a test large table: First set up the test table Sys@orcl>create table Test nologging as Select RowNum id,a.* from Dba_objects a where 1=2; Table

Database updates are usually caused by events that occur in the objective world. In order to ensure the consistency of the database content, a set of operations of the database should be carried out as a whole, either complete successfully or all

Backup | recovery | Hot BACKUP | data Use hot backup for time-sharing recovery ----How to recover incrementally from archiving to shorten data migration time Last Updated:monday, 2004-11-15 10:32 eygle A lot of times you may encounter a

(4th number Lock analysis of the unique key constraints) A previous customer suggested that when the insert was hang to live, the problem is likely to be locked. For such a question I usually think of a few common views:

I use Oracle9i, Oracle8, there is a long time, I put in the JSP need to pay attention to the problem here to write, only for your reference. How to deal with the large types of CLOB and blobs CLOB can be used to store large text data, storing up

Ado|web Five, StoredProcedure Before I discuss StoredProcedure, I also want to explain the role of the Command object's Execute method, which generally uses the command's Execute method for three purposes. 1, for some simple processing, such as the

Case 2:recover tablespace (recover tablespace (delete all datafile of tablespace)) When you delete a data file in Guanqu state, this restores: Dumps the datafile, makes the missing datafile offline, recover tablespace (1) Simulation environment

Question: How to implement import and export between Oracle and Access tables in form programs. Answer to the question: Preparatory work: 1. Install OCA. Run the developer installation disk, select the custom installation, and select the Oracle

Because the version of MySQL is more and is acquired by Oracle Company, all a lot of friends are not very clear about the difference of each version, here is a simple introduction, easy to need friend one, each version of the common command

Connection pooling is very good idea and application is very common. Writing a database connection pool is not as difficult as you might think. The general system does not have much to do with connection pooling, and using your own connection pool

Problem Unexpected error when using hibernate: Exception in thread ' main ' org.hibernate.LazyInitializationException:could not initialize proxy-the owning session is Closed at Org.hibernate.proxy.AbstractLazyInitializer.initialize

Oracle temporary tables can be said to be a good way to improve the performance of database processing, stored only in the Oracle temporary table space when there is no need to store them. Hope this article can be helpful to everyone. 1. Preface