c# sqlite example

Unity3d, C # using sqlite as a database solution 1. The editor establishes the database structure and generates the sqlite database file. You can use the navicat graphic interface editor to operate the file.2. Create a data warehouse and change the suffix to. txt format (to facilitate unity3d loading). Put the file in the Assest/Resources Directory (to create a

(); CREATE TABLE DateTime dt1 = DateTime.Now; System.Data.SQLite.SQLiteCommand cmd = new System.Data.SQLite.SQLiteCommand (); String sql = "CREATE TABLE Test (username varchar (20))"; Cmd.commandtext = SQL; Cmd. Connection = conn; Cmd. ExecuteNonQuery (); using (System.Data.Common.DbTransaction Dbtrans = conn.BeginTransaction ()) {sql = "INSERT into Test VALUES (@q1)"; DbParameter Field1 = cmd. Cre

Label:When a large amount of data is deleted from the SQLite database, if the database file is not smaller, you can perform a VACUUM command that will reorganize the database and free up extra space.Test Insert Data try {sqliteconnection cnn = new Sqliteconnection (@ "Data Source=g:\app _data\data.sqlite; "); Cnn. Open (); using (sqlitetransaction Dbtrans = CNN. BeginTransaction ()) {using (Sqlit

1. Download Sqlite:http://system.data.sqlite.org/downloads/1.0.94.0/sqlite-netfx20-setup-bundle-x86-2005-1.0.94.0.exe2, install the downloaded file: Sqlite-netfx20-setup-bundle-x86-2005-1.0.94.0.exe3. Right-click C # Project Properties:4. The "Target frame" in the "Application" tab is changed to:. NET Framework 3.55. "Target platform" in "Generate" tab changed to

Label:Have to spit groove, it is too pit. The following points must be noted: To download two things, you have to have an officer net. One is SQLite for Windows, and one is System.Data.SQLite. Download the DLL inside there is a test, it must be tested with it to be done. The connection string format above is the correct format. Note the path is to be used in this format.XML version= "1.0"?>Configuration>Startup>supportedruntimeversion= "v2.0.507

Tags: style class blog C code javaThere are two ways to perform SQLite database transactions in C #: SQL code and C # code1.SQL Code:BEGIN ...COMMIT/rollback2.c# Code:using(Sqliteconnection conn =sqlitehelper.getsqliteconnection ()) {dbtransaction trans=Conn.

Tags: word src interface Visual GUI log development package game imgOperation of the SQLite file databaseQT plug-in installation configuration1, VS2008 installation of the QT development packageUnzip 4.7.3.rar to C:\Qt\4.7.3\Qt for VS addin2. Install and configure Visual Assist XKey difficulty 1, connect SQLite file database and manipulateKey difficulties 2:QT In

Label: /***************************************************************** * C # SQLite * Description: * This Documents that use SQLite references in C # are documented. * 2016-7-3 Shenzhen Nanshan Ping Shan village Zengjianfeng *********************************************************** *****/First, reference article:

The example in this article describes a C # simple query SQLite database for data. Share to everyone for your reference, specific as follows: SQLite Database Driver component using System.Data.SQLite; Insert Database function int sqlquery (String sql) { try { //Open database sqliteconnection c

compilation in the program. The result is as follows: Microsoft (R) Library Manager Version 9.00.21022.08 Copyright (C) Microsoft Corporation. All rights reserved. Creating Database...Sqlite3.libAnd objectSqlite3.exp 2: InC ++Operation in progressSQLiteDatabase Problem 2: sqlite3.dll not found, So this application failed to start I putSqlite3.dll,Sqlite3.h,Sqlite3.libCopy to the same folder. This problem is known during compilation. Originally requir

A few days ago, I suddenly came up with an idea. I used C # And SQLite to develop an Ajax notepad. After that, my friend told me to take a look at it and it was not easy to use it. Debugging can be performed in vs2005, but attempt to write a readonly a database is always displayed when new records are saved to the SQLite database. A calm analysis: I have not set

. Password = "admin";//Set password, SQLite ADO. NET implements the database password protectionConn. ConnectionString = ConnStr. ToString ();Conn. Open ();Create a tableSystem.Data.SQLite.SQLiteCommand cmd = new System.Data.SQLite.SQLiteCommand ();String sql = "CREATE TABLE Test (username varchar (), password varchar (20))";Cmd.commandtext=sql;Cmd. Connection=conn;Cmd. ExecuteNonQuery ();Inserting datasql = "INSERT into Test VALUES (' Dotnetthink ',

1System.Data.SQLite.SQLiteConnection Conne =NewSystem.Data.SQLite.SQLiteConnection ();2System.Data.SQLite.SQLiteConnectionStringBuilder connstr =NewSystem.Data.SQLite.SQLiteConnectionStringBuilder ();3ConnStr. DataSource = System.AppDomain.CurrentDomain.BaseDirectory +"//db//course.db";4Conne. ConnectionString =ConnStr. ToString ();5 Conne. Open ();6 7System.Data.SQLite.SQLiteCommand cmd =NewSystem.Data.SQLite.SQLiteCommand ();8 9 stringsql ="Select * from userlogininfo WHERE useraccount = '----

member Management system all source code , VS2010 development, using the ADO Entity Framework EF, simplify the database access layer, and can be easily ported to other databases. Use data binding to reduce the amount of coding, improve program maintainability and readability. Use Winfoms to facilitate rapid interface development and modification. Simple interface design, convenient for users to get started. Detailed code comments to help two of times developers quickly read the program.Provides

encapsulated C + + class.The following direct sticker code:Class Cppsqlite3query{private:sqlite3 *mpdb;sqlite3_stmt *mpstmt;bool mbeof;int mncols;void CheckStmt ();p ublic: Cppsqlite3query (); Cppsqlite3query (Sqlite3 *pdb, sqlite3_stmt *pstmt, bool beof); Cppsqlite3query (const cppsqlite3query rquery); cppsqlite3query operator= (const cppsqlite3query rquery); ~cppsqlite3query (); int fieldnums (); int FieldIndex (const char* Szfield); const char* Fi

SQLite uses cast (sum (a) as decimal), and if the A fractional part is 0, the field in the table is considered the System.Int64 type when populated to the table. When a DataTable goes to an entity class in C #, an error occurs andthe object "type System.Int64" cannot be converted to type "System.Decimal". The original code for the entity class conversion function is as follows: 1

Tags: c#sqlite database sqlitehelper Using System; Using System.Collections.Generic; Using System.Data.SQLite; Using System.Data; Namespace Com.ZCWL.Rock.Helper {public class Sqlitehelper {private static string connectionString = String. Empty; Note: When you use this class, you need to reference the System.Data.SQLite assembly . Copyright NOTICE: This article for Bo Master original article, withou

1.SQLite is a fully independent, open-source file database engine that does not require a server, no configuration, and no support for SQL. Source code and support can login:http://www.sqlite.org/ 1.1. Download the Sqlite3.dll and sqlite3.def files, download the sqlite-dll-win32-x86-3080803 file on the download page1.2. Download the sqlite3.h and download the sqlite