bulk update

  spring provides us with a unified package of JDBC, unlike other Orm, which encapsulates the JDBC API, which is equivalent to our own Java bean, without encapsulating the object model (for example, encapsulating the PO as Pojo). It retains the

Copy CodeThe code is as follows: $path = $DOCUMENT _root; $path =str_replace ("/", "\ \", $path); Specify folder $path = $path. " \\web\\study\\ "; Get all the files $s =explode ("\ n", Trim (' dir/b/o:gn $path ')); Get all the HTML file names

Recently encountered a problem in the project, the original design function is not required a specific field value depid, but the new features need to be based on depid to show, so there is a problem, the new added data have the correct depid, And

In this paper, we describe the methods of Hibernate batch processing of massive data. Share to everyone for your reference, as follows:Hibernate batch processing Mass in fact, from the performance considerations, it is very undesirable, wasting a

First, BULK INSERT During the development of the project, we often need to insert large quantities of data into the database due to project requirements. There are magnitude, level 100,000, millions, and even tens. This number of levels of data is

JDBC Transaction@author IxenosTransaction1. Concept: We build a set of statements into a single transaction (trans action), and when all statements are executed successfully , the transaction can be committed (commit), otherwise, if one of the

'************************************** ' Name:batch Update using ADO ' Description:ado has a great batch UPDA ' Te feature that is not many people take ADV ' Antage of. can use it to update many ' Records at once without making multiple ' Round

Update Dept B, (select Group_concat (T.deptid), Group_concat (d.deptname separator '/') as Dname, T.id, t.deptname from (sel ECT Substring_index (Substring_index (A.deptid, ', ', b.help_topic_id+1), ', ', -1) as DeptID, a.ID, A.deptnameFrom(select D.

Reprinted from: http://blog.csdn.net/yuhua3272004/article/details/2909538HIBERNATE3.0 uses a new ANTLR-based Hql/sql query translator, in Hibernate's configuration file, the Hibernate.query.factory_class attribute is used to select the query

Reprinted from: http://blog.csdn.net/yuhua3272004/article/details/2909538HIBERNATE3.0 uses a new ANTLR-based Hql/sql query translator, in Hibernate's configuration file, the Hibernate.query.factory_class attribute is used to select the query

Batch processing of 4.2 hibernateHibernate operates the database entirely in an object-oriented manner, and is automatically converted to operations on the database when it is manipulated in an object-oriented manner. For example, by calling the

Reprinted from: http://blog.csdn.net/yuhua3272004/article/details/2909538HIBERNATE3.0 uses a new ANTLR-based Hql/sql query translator, in Hibernate's configuration file, the Hibernate.query.factory_class attribute is used to select the query

JDBC Common interface, Class introductionJDBC provides a unified, database-independent API to execute SQL commands. The APIs commonly used classes and interfaces are as follows:DriverManagerManagement of the JDBC-driven service class, mainly through

--------------------------------------------------------------------------Author:happyflystone--Date:2009-10-05 14:00:00--Version:microsoft SQL Server 2005-9.00.2047.00 (Intel X86)-APR 14 2006 01:12:25--Copyright (c) 1988-2005 Microsoft Corporation--

First, JDBC Common interface, Class introductionJDBC provides a unified, database-independent API to execute SQL commands. The APIs commonly used classes and interfaces are as follows:DriverManagerManagement of the JDBC-driven service class, mainly

Reprinted from: http://blog.csdn.net/yuhua3272004/article/details/2909538HIBERNATE3.0 uses a new ANTLR-based Hql/sql query translator, in Hibernate's configuration file, the Hibernate.query.factory_class attribute is used to select the query

First, JDBC Common interface, Class introductionJDBC provides a unified, database-independent API to execute SQL commands. The APIs commonly used classes and interfaces are as follows:DriverManagerManagement of the JDBC-driven service class, mainly

Bulk update refers to the update of large quantities of data in a transaction, which is the deletion of large quantities of data in a transaction. The following program batches updates the Age field for all records in the Customers table that are

Hibernate batch operations Optimization (bulk inserts, updates, and deletes) Problem Description I developed the site added a new feature: the need for online Processing table data batch merge and update, yesterday afternoon released online, the

Recently in doing a very simple small project, although simple, but also encountered a lot of problems, now roughly recorded: The project is basically divided into two main modules: I do this piece, with the current universal SSH framework to