SQLiteConnection.CreateFile(dataBaseFileName); }if(!ExixtsTable("PointManage")) { ExecuteSql(@"CREATE TABLE PointManage( Id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, PointAddress TEXT NOT NULL, PointDes TEXT NOT NULL )"); }if(!ExixtsTable("PointValue")) { ExecuteSql(@"CREATE TABLE Po...
cmd.ExecuteNonQuery(); cmd.CommandText = @"CREATE TABLE PrintDataInfo(id INTEGER PRIMARY KEY, FullSn TEXT, MeterId INT,OrderNr TEXT,TestDate DATETIME)"; cmd.ExecuteNonQuery(); return true; } } } catch (Exception) { return false; } } private void btnCreateTable_Click(object sender, Routed...
cmd.ExecuteNonQuery(); cmd.CommandText = @"CREATE TABLE PrintDataInfo(id INTEGER PRIMARY KEY, FullSn TEXT, MeterId INT,OrderNr TEXT,TestDate DATETIME)"; cmd.ExecuteNonQuery(); return true; } } } catch (Exception) { return false; } } private void btnCreateTable_Click(object sender, Routed...
CONVERT (data-type [(length)], expression[,style]) 可将它简化为如下形式,因为现在不讨论如何使用数据类型: CONVERT(date_type, expression[,style]) 根据上面的定义,CONVERT()函数可接受2个或3个参数。因此,下列两个例子都是正确的: SELECT CONVERT(Varchar(20), GETDATE()) 1. SELECT CONVERT(Varchar(20...
--插入--注意:Integer允许自动增长(不要被Identity 忽悠)insertintoUserInfo(UserId,UserNames,UserPasss,RegDate)values(1001,'admin','admin','2021-01-21')insertintoUserInfo(UserId,UserNames,UserPasss,RegDate)values(1002,'sanha','sanha', datetime('now','localtime'))--查询select*fromUserInfo--Li...
sed 's/INTEGER PRIMARY KEY AUTOINCREMENT/INTEGER PRIMARY KEY/g' dbname.sql | sed 's/datetime/timestamp/g' > renamed.sql 1. 2. 还是会有问题,有的表明会加上双引号,数据类型也不兼容,无奈手写一个脚本。 二,脚本源码 需要pip对应的包
OverflowError: Python int too large to convert to SQLite INTEGER Adding @ikelos in case he has a quick fix Author Sebastienbr commented Mar 4, 2015 Thanks gleeda. If it can help, here's what I have found about this problem: >>> import sqlite3 >>> sqlite3.connect(':memory:').exe...
首先，在MySQL服务器上创建一个新的空数据库。然后，使用SQLite转换工具将SQLite数据库文件导出为MySQL格式的文本文件。最后，在MySQL服务器上使用LOAD DATA INFILE语句将导出的MySQL格式文件导入到新建的数据库中。NineData是一款非常有特色的数据库SQL开发产品，对MySQL常用功能支持非常完整，包括智能的SQL补全...
sqliteToExcel.setCustomFormatter(newSQLiteToExcel.ExportCustomFormatter() {@OverridepublicStringprocess(StringcolumnName,Stringvalue) {switch(columnName) {case"income_type_id":intv=Integer.parseInt(value);switch(v) {case10:value="Sale";break; ...default:value="Unknown";break; }break; }returnvalue...
Based on Sqlite docs: https://www.sqlite.org/datatype3.html#type_conversions_prior_to_comparison, especially this statement: If one operand has INTEGER, REAL or NUMERIC affinity and the other operand has TEXT or BLOB or no affinity then NUMERIC affinity is applied to other operand....