powerbuilder datastore

the stack can be accessed. To get the low-level elements of the stack, you must first remove the above elements. The two main operations we can perform on the stack are to push an element into the stack and bring an element out of the stack. In the stack, we can use the push () method, and the pop () method. Although the pop () method can access the elements at the top of the stack, after calling this method, the elements at the top of the stack will be permanently deleted from the stack. Anoth

Dictionary Dictionary Class/*Dictionary Dictionary class*/functionDictionary () { This. Add =add; This. Datastore =NewArray (); This. Find =find; This. remove =remove; This. ShowAll =ShowAll; This. Count =count; This. Clear =clear;}functionAdd (key, value) { This. Datastore[key] =value;}functionFind (key) {return This. Datastore[key];}functionRemove (key)

AANetworks and images can be shared across clusters. In this case, the scheduling in the cluster should not be affected?13:56:52Bb13:56:52YesBb13:57:03Scheduling is related to the datastore of the host and system.AA13:57:21I just guessed it. Have you verified it?AA13:58:11Who will talk about the one scheduling process when there is time?Bb13:58:45I verified it in the morning14:02:45Tesla14:02:45Cross-cluster sharing between the network and image is no

----------------------------------------------------------------To use a cursor step:1) Defining CursorsDECLARE CURSOR cursor name forSelect field name from table nameWhere condition expression {using Transaction object};2) Open cursorOpen cursor name;The corresponding return result is saved in the cursor after the cursor is opened3) Read dataFetch cursor name into: variable list;4) Close the cursorClose cursor name;When iterating over a cursor, it is possible to know whether all the data has be

while Li_count Close my_cursor;* See Help for details----------------------------------------------------------------To use a cursor step:1) Defining CursorsDECLARE CURSOR cursor name forSelect field name from table nameWhere condition expression {using Transaction object};2) Open cursorOpen cursor name;The corresponding return result is saved in the cursor after the cursor is opened3) Read dataFetch cursor name into: variable list;4) Close the cursorClose cursor name;When a cursor is looped, t

opened8019 devices busy8020 read comm device error comreaderror8021 internal error comdcberror when Retrieving Device Control Blocks for this port Research on Serial Communication Programming Technology in PowerBuilder Abstract: This paper introduces how to implement serial communication by calling Win32 API functions in PowerBuilder, using mscomm32.ocx communication controls, using VCL communication compo

The use of Funcky Zhang Jianji 01-6-26 04:31:30 Funcky is a PowerBuilder application library that provides 16-bit and 32-bit application libraries that contain a large number of underlying functions, eliminating the ability of developers to write in the C language themselves The dynamic link library handles many common functions such as file manipulation, string manipulation, bit manipulation, and so on. The use of funcky can greatly improve the deve

Analysis of Agent Plugin The use of Office XP, Jinshan poison PA and rising anti-virus software friends, will certainly be in the program of human animated characters impressed, this is entirely due to the introduction of Microsoft Agent ("Agent") technology, the agent using COM technology, using ActiveX control methods, Support the current popular development tools, not only to achieve the text reading aloud, but also to identify the user's voice commands, in the application and HTML files are

The Blobstore API allows your application to use data objects called blobs (serve). This data object is much larger than the size of objects allowed by the Datastore service. BLOBs can effectively serve large files such as video and images, allowing users to upload big data files. Upload a file via HTTP request to create a blobs. Typically, your application is implemented by presenting a table (form) to the user, and a file upload area (a upload field

current position of the list to the last element Prev (METHOD) Move the current position back one Next (METHOD) Move the current position forward one Currpos (METHOD) Returns the current position of the list MoveTo (METHOD) Moves the current position to the specified position Let's look at the code implementationfunctionList () { this. listsize = 0; this. pos = 0; this.

When an application developed at a certain screen resolution is running on another computer, it is likely that the resolution is different from that in the development environment. At this time, make sure that the window interface is still centered, you have to consider this issue during development. The solution is to determine the screen resolution when the window is opened, and determine the position of the window display based on the resolution. Two unit conversion functions and a function u

initialization property value passed to this class. Because I haven't studied the core code, and I haven't gotten to it yet, it doesn't explain how to transfer and implement it. It will be explained in my later ext learning experience.Extend the example above.Java code Copy code The Code is as follows: var grid = new Ext. Form. gridpanel ({ID: 'LIST-account-panel ',DS: datastore,CM: usercm,SM: selectboxmodel,Tbar: menubar,Bbar: pagingbar,Loadmask: {M

({ Opacity: 1 }) The intuitive feeling is that after the first animation ends, the opacity of the element changes to 0.25, the second animation is executed, the opacity of the element changes to 0.5, and so on. But in fact, an essential problem is designed here. animation is called asynchronously, And the animate method is executed synchronously. Therefore, we need to design it to the queue, jQuery also provides a queue method specifically designed for animation. The queue is also a s

are called elements. In JavaScript, the elements in a list can be any data type. How many elements can be saved in a list without prior agreement. However, the number of elements in actual use is limited by program memory.Now that we want to design a list, we can think about implementing a list, what properties and methods they should include, and of course, the design below is based on the demo on the "JavaScript data structure and algorithms" book, so we can learn to do it later if we write t

transacions including optimistic (optimistic, optimized, open) locking and rollback Setting the distributed datastore grows with the data Using App Engine datastore is not a traditonal relational database, queries are specified using a SQL-like query language called gql Gae Terms of Service-partial BytesMust provide legally adequate privacy notice and protection for those users. When nothing in the terms g

JS Priority queue ordering. When you are out of the team, first identify the highest priority elements, and then follow the FIFO first-out team./** Priority Queue * When out of the team, first identify the highest priority elements, and then follow the FIFO first-out team. * */functionQueue () { This. DataStore = [];//an array of storage queues, initialized to null This. enqueue = Enqueue;//add an element to the tail of the queue This. dequeue

File system: File operation in application Data, file operation in Package Introduced Re-imagine the Windows 8 Store Apps File system File operations in Application data (application Datastore) Application The settings action in the data (application Datastore) Referencing media (Pictures, videos, or audio) in application data (application Datastore) by URI

provides a variety of tools for Oracle database data migration. We can also use the Data Pipeline Function of PowerBuilder to migrate Oracle database data. The earlier version of Oracle Database is Oracle8i. The following describes how to migrate database data to Oracle8i: Method 1: migrate the Utility (Migration Utility) MIG is a command line utility provided by Oracle for data migration between Oracle databases. The general steps for migrating data

of the professor.I bought a computer when I was a sophomore. At that time to install operating system very interested, remember the first day in order to learn to install the operating system, I simply repeatedly installed Win 2000 5 times, eventually all understand. The back of the partners to reload the system is often handed over to me.In junior high time and Konda classmate use PowerBuilder + SQL Server2000 do a small software, code, make Help ma

1 Make DataWindow column only append cannot modifyHow to make the data in DataWindow can only append new records and cannot be modified, it is convenient to do this by using the Protect property of Column, the method is as follows:Set the Protect property of each column to:If (Isrownew (), 0, 1))You can dynamically modify the Protect property in PowerScript:Dw_1.modify ("Column_name_here. Protect= ' 1~tif (isrownew (), 0, 1) ' ")This way, only newly appended records in the DataWindow can be modi