bulk update

Reprint Please specify source: http://www.cnblogs.com/Joanna-Yan/p/6973266.htmlMentioned earlier: Spring+springmvc+mybatis in-depth study and build (ix)--mybatis and Spring integrationUse the Mapper Auto-generate tool mybatis-generator-core-1.3.2 on

The ExecuteBatch () method is used to execute the SQL statement in batches, but cannot execute the SQL statement that the return value is the resultset result set, but instead executes the stmt.executebatch () directly;Auxiliary methods:Addbatch ();

Data in the client's request body: [{"msg_id": 1, "Msg_status": "Has_read"}, {"msg_id": 2, "Msg_status": "Has_read"}] is a two-dimensional array string$json _data = Json_decode ($GLOBALS [' Http_raw_post_data '], true);In fact, with this sentence

In Dreamweaver 4.0, we have contacted the concept of templates and libraries, knowing that they are a good tool for batch generation of similar Web pages. Now in Dreamweaver MX (hereinafter referred to as DW MX), the function of template and library

Bulk updating refers to the updating of mass data in a transaction, which refers to the deletion of bulk data in a transaction. The following program uses the Hibernate API to bulk update the age field for all records in the Customers table that are

In the previous article, you have learned how to implement a table inheritance for each hierarchy. In this section, you will learn the advanced features that you can take advantage of when you develop an ASP. NET Web application using entity

1, modify the/caches/configs/system.php inside all and the domain name, the former old domain name changed to a new domain name.2, into the background settings-site management, the corresponding site to modify the domain name of the new domain name.3

Overview of the Lock Why should I introduce a lock?Concurrent operations on a database by multiple users can cause the following data inconsistencies: Missing updatesA,b two users read the same data and make changes, one of the user's changes to

This example describes the use of sprintf functions in PHP. Share to everyone for your reference. The specific usage analysis is as follows: sprintf () function in the PHP official is said that the string format output, this article will give you

The 1.dictionary:dictionary type is a dictionary that represents a key/value repository.given a Dictionary object that searches for the value corresponding to the key, the dictionary is considered a list of key/value pairs. 2. Type

Before talking about the lock mechanism of SQL Server, consider the following scenario: When you are riding your car to your destination in the heat of the summer, is it depressing to meet a few long red lights on the road? Sometimes you just can't

The following program uses the Hibernate API to bulk update the age field for all records in the Customers table that are older than 0: tx = Session.begintransaction (); iterator Customers=session.find ("from Customer C where c.age>0"). iterator ();

Before we introduced the MyBatis basic additions and deletions of the check operation, this article introduces the bulk of the deletion and modification of the operation. Front Address: http://blog.csdn.net/mahoking/article/details/43673741 Batch

1. Overview Leveldb (http://code.google.com/p/leveldb/) is Google Open source Key/value storage System, its Committer lineup is very strong, basically bigtable of the original class, including like Jeff Dean, Daniel, its code design is very

L Business Scenario: When you need to send a batch of SQL statements to the database execution, you should avoid sending to the database, but should adopt JDBC batch processing mechanism to improve execution efficiency.There are two ways to

views and base tables vs views and select Only a SELECT statement is saved in the view, and the source data is from the base table Check View When you update the base table data by checking the view, only the update statements that meet the check

This article collects a number of ways to improve JDBC performance. The performance of Java applications or EE Web applications is important, especially for the performance impact of database backend applications. I don't know if you've ever

This article outlines the latest features of the ado.net2.0 in the. NET Framework 2.0. Some simple examples will be included in the following descriptions to discuss the details of these features. The following are the new features of Ado.net: 1.

Today, the manager gave me a SQL file of more than 30 m to test the data positioning problem. By convention, I create a table using the Navicat for SQLite, and then import the SQL file. I then went to do other things, about one hours, I think the

We can execute the corresponding SQL statement by using statement or PreparedStatement objects, but sometimes when we need to send a batch of SQL statements to the database to avoid sending execution to the database, We should adopt the JDBC batch