sqlite multiple connections to same database

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Implementation of original subcommit in SQLITE

From: http://blog.csdn.net/LocalVar/archive/2008/02/13/3620555.aspx  1. Introduction An important feature of a database that supports transactions like SQLITE is "Atomic commit ". Atomic commit means that all modification actions in a transaction

The dynamic memory allocation of SQLite profiling

SQLite uses dynamic memory allocations to obtain the memory needed for various objects, such as database connections and SQL preprocessing statements, to establish the memory cache for database files, and to save query results. We've done a lot of

Detailed SQLite Query Planner _ database Other

1.0 Introduction The task of the Query planner is to find the best algorithm or to say "query plan" to complete an SQL statement. As early as SQLite version 3.8.0, the component of the query planner has been rewritten so that it can run faster and

C Programming Interface of SQLite database (7) database locking -- Reading Notes of using SQLite

C Programming Interface for SQlite Database (7) Database Locking)By drizzle QQ: 253786989 The content in Using SQLite is not very clear. Have time to take a closer look at SQLite documentation: http://www.sqlite.org/lockingv3.html (File Locking And

SQLite FAQ Chinese Version

1) how to create an auto-increment field? A simple answer: a field declared as integer primary key will be automatically added. Here is a detailed answer: Starting from SQLite 2.3.4, if you declare a field in a table as integer primaryKey, so no

SQLite profile temporary files, memory database

One, 7 types of temporary documentsA different feature of SQLite is that a database is composed of a single disk file. This simplifies the use of SQLite because moving or backing up a database simply copies a single file. This also makes SQLite

SQLite Anatomy of asynchronous IO mode, shared cache mode, and lock notification

1. Asynchronous I/O modeTypically, when SQLite writes a database file, it waits until the write operation is complete and then controls the return to the calling program. Writing a file system is very time-consuming compared to CPU operation, which

A detailed tutorial on SQLite database transaction processing

When it comes to business, it must refer to acid, the atomicity, consistency, isolation and permanence of the transaction. For a database, the ACID properties of transactions under normal and exceptional conditions are usually ensured through

SQLite profiling (6): temporary files and memory databases

1. Seven temporary filesThe content is organized from http://sqlite.org/tempfiles.html.A different feature of SQLite is that a database consists of a single disk file. This simplifies the use of SQLite, because you only need to copy a single file to

SQLite's affairs and locks, a very thorough explanation of "turn"

Original: SQLite's transaction and lock http://3y.uu456.com/bp-877d38906bec097sf46se240-1.htmlTransactionA transaction defines the bounds of a set of SQL commands that are either fully executed as a whole or are not executed. A typical instance of a

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