输入sqlite3如果有下列版本信息,就表明已经安装了 lk@lk-PC:~/Desktop/sql$ sqlite3 SQLite version3.24.02018-06-0419:24:41Enter".help"forusage hints. Connected to a transientin-memory database. Use".open FILENAME"to reopen on a persistent database. sqlite> 如果没安装的话 从源代码区下载sqlite...
privatevoidcreateDatabase() { Stringname="test.db"; intmode=MODE_PRIVATE; SQLiteDatabase.CursorFactorycursorFactory=null; db=openOrCreateDatabase(name,mode,cursorFactory); } privatevoidcreateTable() { Stringsql="CREATE TABLE users ("+ "name VARCHAR(10) UNIQUE NOT NULL, "+ "age INTEGER, "+ "p...
1 /// 2 /// 新建数据库文件 3 /// 4 /// 数据库文件路径及名称 5 /// <returns>新建成功,返回true,否则返回false</returns> 6 static public Boolean NewDbFile(string dbPath) 7 { 8 try 9 { 10 SQLiteConnection.CreateFile(dbPath); 11 return true; 12 } 13 catch (Exception ex) 14 ...
"sqliteSample.db");using(vardb =newSqliteConnection($"Filename={dbpath}")) { db.Open();stringtableCommand ="CREATE TABLE IF NOT "+"EXISTS MyTable (Primary_Key INTEGER PRIMARY KEY, "+"Text_Entry NVARCHAR(2048) NULL)";varcreateTable =newSqliteCommand(tableCommand, db); createTable....
using System.Data.SQLite;class Program{static void Main(){string dbPath = "example.db";using (SQLiteConnection conn = new SQLiteConnection($"Data Source={dbPath};Versinotallow=3;")){conn.Open();using (SQLiteCommand cmd = conn.CreateCommand()){// 创建表cmd.CommandText = @"CREATE TABLE IF...
(SqliteConnection db =newSqliteConnection($"Filename={dbpath}")) { db.Open(); String tableCommand ="CREATE TABLE IF NOT "+"EXISTS MyTable (Primary_Key INTEGER PRIMARY KEY, "+"Text_Entry NVARCHAR(2048) NULL)"; SqliteCommand createTable =newSqliteCommand(tableCommand, db); createTable....
1//创建一个数据库2SQLiteConnection.CreateFile("Database.sqlite"); 操作数据库 代码语言:javascript 复制 //创建连接字符串SQLiteConnection conn=newSQLiteConnection("Data Source=Database.sqlite;Version=3;");//这是数据库登录密码conn.SetPassword("1234");//打开数据库conn.Open();string query="create ...
SQLiteConnection.CreateFile("MyDatabase.sqlite"); 4、连接到SQLite数据库。使用SQLiteConnection类的构造函数可以连接到SQLite数据库。以下是一个连接到SQLite数据库的示例代码: 代码语言:javascript 复制 string connectionString="Data Source=MyDatabase.sqlite;Version=3;";SQLiteConnection connection=newSQLiteConnectio...
.restore ?DB? FILERestore content of DB (default "main") from FILE .save FILEWrite in-memory database into FILE .scanstats on|offTurn sqlite3_stmt_scanstatus() metrics on or off .schema ?PATTERN?Show the CREATE statements matching PATTERN ...
2.sql语句(sql中的语言) 增删改查: 新建修改删除表 插入修改删除行 查询 2.1新建一张数据表 语法: create table 表的名称 (列名称 列数据类型, 列名称 数据类型); 例如: create table persons (id int, name text); 创建一张表 表名为persons 表中两列 分别为id(int类型的)、name(文本类型的) ...