sqlite database manager

Tags: style blog http color io using AR strong SPPrevious Blog "SQLite: Multi-threaded Operation database" is locked "solution" by registering the delay function to deal with the problem of database lock. This approach solves the problem, but the delay slows the progress when multiple threads write large amounts of data to the database.Think of method Two:1. Crea

Trim (class_name) from T_classReplaceSelect Replace (class_name,' C ',' O ') from T_class// length ( space also count length )Select Length (class_name) from T_class// Date functionSelect Date () from T_classSelect DateTime () from T_class// judged to be emptySELECT * from T_class where class_name is nullSortSELECT * from T_class ORDER BY class_id Desc(reverse)SELECT * from T_class ORDER by class_id ASC ( Positive order,ASC can save default positive order )@endiOS UI

The Hxj.data (V1.3) component adds support for the SQLite database. And the Entity Generation Tool also publishes (V1.3) versions that support entity generation for SQLite databases. Using Sqlite database development, you need to refer to the three DLLs Hxj.data, Hxj.D

I. SQLite operationsSQLite provides some C function interfaces that you can use to operate databases. By using these interfaces, you can pass some standard SQL statements (in char * type) to the SQLite function, and SQLite will operate the database for you.SQLite and MS access is the same as a file

When an application is installed in Android, we generate a lot of data in the process of using the app, and the app has its own data, so how do we store the data?How data is storedThere are 5 ways to store your Android data: 1. Sharedpreferences Storage Data sharedpreferences data storage, also known as XML storage.This is the data stored under the "data/data/Package name/share_prefs" path to the XML file. Related connection: "Data storage in Android (i)--sharedpreferences storage data" 2. File

In most applications, one of the unavoidable things to do is to set up such local data stores. Simple data storage We can do local data storage using LocalSettings or IsolatedStorageFile (Isolated storage) and so on. However, if the data is complex, or if there is an association relationship, this simple key-value storage method is not enough. This is the time to use a database for storage. When it comes to databases, small, lightweight file-based

Today in the SQL Server into SQLite database, encountered a lot of problems, searched the internet for a long time, did not find the right software to convert SQL Server to SQLite, which used the Sqlitedev software, in the process of conversion, If you have a problem with your watch, then you can't convert it all, but you have to continue to search for the conver

When using the SQLite database, we may find that Chinese characters are displayed when inserting data into the database, however, garbled characters are displayed when read through SQLite. This is because the encoding method supported by SQLite is different from the encoding

Category: C #, Android, VS2015;Date Created: 2016-02-26 I. INTRODUCTIONAndroid contains three data access methods: SQLite database, file, sharedpreferences.In this chapter we mainly learn how to use SQLite database to access data.1, SQLite is a

Learning database in recent time, because of their own needs, so pay attention to the point embedded SQLite database, SQLite, a lightweight database that complies with acid's relational database management system, is designed to

This article is original, if you need to repost, please indicate the author and source. Thank you! it's time to explain the database. Databases are also the core of the android storage solution. The SQLite database is used in the Android system. SQLite is a very lightweight data