ledger locks

Page level: Engine BDB.Table level: Engine MyISAM, understood to lock the entire table, can be read at the same time, write notRow level: Engine INNODB, separate one-line record lock Table level, locking the entire table directly, and other processes cannot write to the table while you are locked out. If you are writing a lock, then the other processes are read and not allowedRow level, which locks only the specified record, so that other processes c

Overview of the LockWhy should I introduce a lock?Multiple users at the same timeThe concurrency of a database causes the following data inconsistencies:Missing updatesA,b two users read the same data and make changes, one of the user's changes to destroy the result of another change, such as booking systemDirty ReadA the user modified the data, then B users read out the data, but a user for some reason to cancel the modification of the data, data restore the original value, at this time the dat

About Super Ledger December 2015, led by the Linux Foundation, IBM, Intel, Cisco and so on jointly announced the establishment of Hyperledger joint project. Super Ledger project provides open source reference implementation for transparent, open and decentralized enterprise-class distributed ledger technology The current super

EBS Fixed Asset module has a lot of business operations, each business generated by the accounting entries sent to the general ledger, the resulting Journal of the category (category) is not the same, now listed as follows:Serial number of the asset module business corresponding to the journal Ledger category1 new assets added (Addititon)2 Depreciation depreciation (depreciation)3 adjusting the original val

I. Task setting meeting ProcessDate: April 13 3.00-4.00Content: Determine the implementation of the software for Android mobile development, the initial implementation of the software and the implementation of the process of the task, and each claimed the respective tasks.Second, the backlog Id Name Imp Est How to Demo Notes 1 Login and Registration Open the software, you will first jump out of the login screen, then t

Master ledger data Primary data IntroductionIs used to describe objects used in accounting, materials, suppliers, customers, and other business processes,During a period of time, the information often remains unchanged.Each primary data has a single name or number. -- Master data of the General Ledger: S-- Supplier master data: K-- Customer master data: d-- Asset master data:-- Material master data: m Co

Super Ledger Hyperledger-fabric local compilation and installation From Yang Paohua and other "blockchain-principles, design and Application" Local compilation installation deployment Super Ledger fabric network. The super ledger fabric is based on the Go language implementation, and local compilation is recommended to configure Golang1.7 or later environments.

Hyperledger-Super Ledger study report first, what is blockchain. The fundamentals of the blockchain, the basic components include: Trade: Changes in the state of the ledger; Block: Record transactions and status, is a confirmation of the status of the current ledger; Chains: Logging of state changes. When a blockchain is used as a state machine, each transacti

JavaScript Ledger Plug-in interface version 2 The Interledger protocol is a suite of protocols that are used to pay across multiple different settlement systems. The specification defines a JavaScript ledger abstraction interface for Interledger clients and connectors for communication and routing payments across different ledger protocols. Although the exact me

R12: • Ledger currency • Accounting calendar • Accounting methods (new fourth element) 1. Set COA value set: Company segment, cost center segment, and subject segment 2. Set the COA elastic Domain StructureFlexfields-> key-> segment1) create a coa structure: edg_coa2) Set segments 3) value set for segments allocation 4) Freeze elastic domains, enable elastic domains, allow dynamic input, and compile elastic DomainsNOTE: If dynamic input is allowed

MySQL row-level locks, table-level locks, page-level locks, mysql details Page Level: Engine BDB. Table-level: Engine MyISAM, which is interpreted as locking the entire table. It can be read at the same time but cannot be written at the row level. Engine INNODB locks a single row of records and directly

The year-end settlement process in the 1.Oracle General ledger application is included in the open/closed procedure. When the user opens the first period of the new Year, the "Gloire" process in the open/Close program completes the work of transferring all revenue and expense (income statement) account balances to the retained Earnings account (REA). The program then sets the starting balance for these revenue and expense accounts to 0 in the first p

EAS general ledger memorandum subject 1----1 auxiliary account 1----1 .. N accounting project type creden1-1----1 .. N Credential Entry 1----0 .. N auxiliary account combination table: The t_bd_assistanthg horizontal table. Each accounting project type occupies one column, and each row represents the combination of each accounting project (specific auxiliary account ). Credential: t_gl_voucher credential entry: t_gl_voucherentry secondary account line

Dump Bitcoin mainnet Ledger to Elasticsearch. Constructed specify format so we can query balance and Utxo, the main propose of the repo are for wallet or block explorer Install Environment require: Golang (Compile) Dep (Package dependency) Elasticsearch (Database) Before clone the repo, I wanna let claim so there is a bug I had verified the BTCD, an alternative full node Bitcoin im Plementation written in Go. See the detail: [RPC] Getb

In the previous article, we queried the fabric network by executing node query.js, and returned 10 vehicles of information: #node Query.js The output from the command line is as follows: This is 10 cars. The black Tesla model owned by Adriana, the red Ford Mustang owned by Brad, was owned by the man named Pari violet Fiat Punto and so on. The ledger is based on key/value, and in this implementation, the key values are from CAR0 to CAR9. This will b

1. The request to run the interface for transferring accounts receivable from a sales order Request Name: workflow background process Parameters: Project type: Om order line Processing delay: Yes Processing Timeout: No Processing stagnation: No 2. transfer accounts receivable to the general ledger system Request Name: transfer by the general ledger Management SystemProgram 3. Transfer Account

Zookeeper 1. The year-end settlement process in the Oracle general ledger application is included in the program during the enabling/disabling process. When the user starts the first period of the New Year, the "gloire" Process in the program during the start/close period will complete the transfer of all the income and expenditure (profit and loss statement) account balance to the REA). The program then sets the starting balance of these income and e

operation by acquiring a lock to do the same data operation, which is similar to the Java synchronized, so pessimistic lock takes more time. In addition to the optimistic lock corresponding to the pessimistic lock is implemented by the database itself, to use, we directly call the database of related statements can be.Here, the two other lock concepts involved in the pessimistic lock come out, and they are shared locks and exclusive

To avoid concurrency and prevent competition. The kernel provides a set of Synchronization Methods to protect shared data. Our focus is not to introduce the detailed usage of these methods, but to emphasize the difference between these methods and them.LinuxThe synchronization mechanism used can be said to have been continuously developed and improved since 2.0 to 2.6. From the initial atomic operation to the subsequent semaphores, from the large kernel lock to today's spin lock. Along with the

PHP file locks, shared locks, and exclusive locks. Note that there are two types of file locks: Shared locks and exclusive locks, that is, LOCK_SH and LOCK_EX) File locks are generally