Source: http://www.bcmeng.com/windows-phone-sqlite1/This small dream will share with you WP8.1 the basic operation of the SQLite database: (finally there is the whole example of source code) (hope to be able to support the small dream through the site ads, thank you!)
Set up a database
Add data
Delete data
Change data
Querying data
(
first, let's talk about the concept of SQLite:
SQLite is an open-source embedded relational database, which can reduce the overhead of the application Program to manage data, SQLite is portable, easy to use, small, efficient, and reliable. Currently, sqlite3 is integrated in Android.
Python database Operations (SQLite)Unlike the common client/server architecture paradigm, theSQLite engine is not a separate process for the program to communicate with, but rather a major part of connecting to a program. So the main communication protocol is the direct API call within the programming language. This has a positive effect on total consumption, delay time, and overall simplicity. The entire
Secret of Android database experts (1) -- SQLite command
To be proficient in operating any database, the most basic requirement is to understand the SQL language, which is also a skill that every programmer should master. Although SQL is profound and profound, it is really difficult to be proficient, but you still have to learn the most basic table creation comm
Android SQLite database, androidsqlite
I. Introduction to SQLite
Google provides SQLite,He is outstanding in data storage, management, maintenance, and other aspects,The function is also very powerful.
Ii. Features of SQLite
1. lightweightTo use
To skillfully operate any database, the most basic requirement is to understand the SQL language, which is each Programmer should have mastered the skills. Although SQL is broad and profound, to be proficient is really difficult, but the most basic form of some orders, additions and deletions to change, we still have to learn. SQL (Structured query Language) is a standard database query language, which is s
SQLite locksEntireDatabaseDuring a write operation (I. e. when a write is happening on any table, no other write, to any table anywhere can happen at the same time ). some databases provide concurrent writes via table-level locks, or sometimes row-level locks. to contrast this to SQLite'sImplementation, a table-Level Lock basically means that when you're writing data to a given table, no other thread can write to any record in that table, at the same
/local/lib/python2.7/dist-packages/alembic/operations.py", line 805, in Create_unique_constraint Schema=schema, **kw) File "/usr/local/lib/python2.7/dist-packages/alembic/ddl/sqlite.py", line, in Add_constraint"No Support forALTER of ConstraintsinchSQLite dialect") Notimplementederror:no support for ALTER's constraints in SQLite dialectCause of errorToday's database is MySQL, but when the software is instal
SQLite is a lightweight database that adheres to the acid-based relational database management system, which is contained in a relatively small C library. It is the public domain project established by D.richardhipp. It is designed to be embedded , and has been used in many embedded products, it occupies a very low resource , in the embedded device, may only need
Use the existing SQLite database and androidsqlite In the Android Program
In the Chinese search, I did not find a good article about how to use the database I created in advance in the Android Application. So I found this English article on Google and followed its steps, test successful, decided to give this article a rough translation, want to see the original c
Lightweight database SQLite Installation and Use (1) SQLite introduction see Baidu Encyclopedia: http://baike.baidu.com/view/19310.htm Official Website: http://www.sqlite.org/(2) linux SQLite compilation and installation of sqlite-amalgamation-3070900.zip source code
Test.java:/** * This example solves the problem: * Core issue: Create a Database object through the Sqliteopenhelper class * operation of database objects through database object * 1.SQL statement Operation SQLite Database * 2. Google provides API to
SQLite is a lightweight database that adheres to the acid-based relational database management system, which is contained in a relatively small C library. It is the public domain project established by D.richardhipp. It is designed to be embedded, and has been used in many embedded products, it occupies a very low resource, in the embedded device, may only need h
SQLite is a database suitable for embedded applications. It is small, fast, and reliable. Real open-source resources are free of charge and do not retain any copyright (PublicDomain ). It does not need to run additional server processes. It is simpler than MSAccess to use it to develop desktop database applications. [1. Generate the
SQLite is an open-source, embedded relational database that implements a self-contained, 0 configuration, transactional SQL database engine. It is characterized by its high portability, ease of use, compact structure, high efficiency and reliability. Unlike other database management systems,
database is actually created when the getwritabledatabase () or Getreadabledatabase () method is called LOG.D (Appconstants.log_tag, "Databasehelper Cons Tructor "); Cursorfactory is set to NULL, using the system default factory class}//Inheriting the Sqliteopenhelper class, there are three methods that must be covered: onCreate (), Onupgrade (), OnOpen () @Override public void OnCreate (Sqlitedatabase db) {//Call time: The first time the
intNumberid = Sqlite3_column_int (stmt,0); //2. Take out the data in the Name column
ConstUnsignedChar*namechar = Sqlite3_column_text (stmt,1); NSString*name = [NSString stringwithutf8string: (Const Char*) Namechar]; //3. Take out the sex column data
ConstUnsignedChar*sexchar = Sqlite3_column_text (stmt,2); NSString*sex = [NSString stringwithutf8string: (Const Char*) Sexchar]; //4. Take out book row ****** bridging ******//NSData *data = (__bridge NSData *) (
This article mainly introduces the simple operation of the PHP implementation of the SQLite database class and usage, combined with specific examples of the PHP package for SQLite database related additions and deletions to change the operation skills and use of methods, the need for friends can refer to the next
This
The database is configured with NET configuration in the Oracle installation configuration, and today we introduce the second configuration method, net Manager configuration.Find our net Manager shortcuts first, as belowThis is access to the Net Manager interface, click on the service naming,Then click the green + sign
"Introduction to SQLite management Tools"
The following 2 sections are recommended:
Navicat for SQLite: Very powerful, almost contains all the necessary functions of database management tools, easy to operate. The only disadvantage is that you cannot open a database that has been encrypted by System.Data.SQLite.dll.
Da
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