for read only

(1) cursor (1) cursor Concept A cursor is a pointer to a query result set. It is a set of SQL statements associated with a select statement by defining the statement. That is, one record is read from the result set one by one. The cursor contains

In this step, you must specify the attributes of the cursor and the result set as required. You can specify a cursor in two ways. Form 1 (ANSI 92) declare cursor_name [insensitive] [scroll] cursor for select_statement [For {read only | update] [of

The resources (COM. ibatis. Common. Resource. *) resources class provides an easy-to-use method to load resources from the class path. Processing classloader is a challenging task, especially in the case of application servers/containers. The

In the process of using the iwms system, we often encounter data content replacement operations. Before telling you how to replace the data content, I suggest you first understand the data storage type of the SQL Server database: SQL Server Data

This article illustrates several methods for creating configurable PHP Exploitation programs. This article also discusses the use of fantasy configuration points in the program, and seeks a balance between the use of the program Overfire

How to build PHP programs with different files The following is the referenced content: If you plan to make your PHP application available to someone else or company, you need to make sure that the program is configurable. At a minimum, allow the

Q: Please expert advice! The problem is this: I have 1000 data tables, each with the same structure (each table has "QQ,TJ,YJ,EJ,SJ,SIJ,WJ,LJ,ZS,ZJL" 10 fields), but the table name is different. There is also a "Data Update table JJ

The problem today is that hibernate and spring integration, in the same transaction, if the value of the associated object is changed, automatically updates to the database, but I do not want him to update to the database. The end result is that the

MySQL versions, for the Add index processing is different, there are three main types: (1) Copy table methodThis is the earliest supported way to create an index INNODB. As the name suggests, creating indexes is done through temporary table copies.

C # File stream write file, default append Filemode.appendString msg = "OKFFFFFFFFFFFFFFFF";byte[] MyByte = System.Text.Encoding.UTF8.GetBytes (msg);using (FileStream fswrite = new FileStream (@ "D:\1.txt", Filemode.append)){Fswrite.write (mybyte, 0,

This article illustrates several ways to create a configurable PHP application. The ideal configuration point in the application is also discussed and a balance is sought between the application being overly configurable and overly closed.If you

This article is reproduced from http://blog.csdn.net/wulantian/article/details/29593803Thank the Master for his hard work.One, safety improvement1. Provide the method to save the encrypted authentication information, using the. mylogin.cnf file. Use

SQL Server file group (i)Benefits of using filegroups to develop databasesUsing filegroups to develop a database can improve the performance of your database.First, filegroups allow you to span multiple disks, multiple disk controllers, or RAID

Brief introductionWhen it comes to ensuring that enterprise applications built with IBM DB2 (DB2 certified DB2 Training) ®universal Database "(DB2 UDB) and borland® tools (such as Delphi, C++builder, or Kylix) have the best performance, programmers

1.RR Isolation Level: Under this isolation level, DB2 locks all relevant records. In aSQLDuring statement execution, all records executed by this statement are scanned with corresponding locks. In aSQLDuring statement execution, all records executed

The FileStream object indicates the stream that points to the file on the disk or network path. This class provides methods to read and write bytes in files. However, StreamReader or StreamWriter is often used to perform these functions. This is

This article mainly introduces the Python operation files, as well as the simple copy backup. Hope to help everyone. 1.open functionEverything in Python is object, so normal. The process of opening a file is1. Select File-Open file-edit, copy,

The FileStream object represents a stream that points to a file on a disk or network path. This class provides a way to read and write bytes in a file, but often uses StreamReader or StreamWriter to perform these functions. This is because the

1. Generally, use the cursor step (1) to define the cursor EXECSQLDECLAREMY_CURSORCURSORFOR... (2) Open the cursor EXECSQLOPENMY_CURSOR 1. Generally, use the procedure (1) to define the cursor exec SQL declare MY_CURSOR cursor for... (2) OPEN the

The gridview control is used to display data in a table. By using the gridview control, you can display, edit, delete, sort, and read table data in a variety of different data sources (including databases, XML files, and public data business objects.