虫虫首页| 资源下载| 资源专辑| 精品软件
登录| 注册

drag-drop

  • 财务管理系统源代码

    if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK_分录表_凭证表]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1) ALTER TABLE [dbo].[分录表] DROP CONSTRAINT FK_分录表_凭证表 GO if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[本期汇总账簿_科目代码_fk]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1) ALTER TABLE [dbo].[本期汇总账簿] DROP CONSTRAINT 本期汇总账簿_科目代码_fk GO if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[本期明细账簿_科目代码_fk]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1) ALTER TABLE [dbo].[本期明细账簿] DROP CONSTRAINT 本期明细账簿_科目代码_fk GO if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[分录表_科目代码_fk]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1) ALTER TABLE [dbo].[分录表] DROP CONSTRAINT 分录表_科目代码_fk GO

    标签: 财务管理系统 源代码

    上传时间: 2013-11-20

    上传用户:清山绿水

  • 图书馆管理系统源代码

    if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[图书丢失_图书编号_fk]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书丢失] DROP CONSTRAINT 图书丢失_图书编号_fk GO if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[FK_图书罚款_图书信息]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书罚款] DROP CONSTRAINT FK_图书罚款_图书信息 GO if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[图书归还_图书编号_fk]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书归还] DROP CONSTRAINT 图书归还_图书编号_fk GO if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[图书借阅_图书编号_fk]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书借阅] DROP CONSTRAINT 图书借阅_图书编号_fk GO if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[FK_图书征订_图书信息]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书征订] DROP CONSTRAINT FK_图书征订_图书信息 GO if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[图书注销_图书编号_fk]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1) ALTER TABLE [dbo].[图书注销] DROP CONSTRAINT 图书注销_图书编号_fk

    标签: 图书馆 管理系统 源代码

    上传时间: 2014-05-04

    上传用户:togetsomething

  • 电源完整性分析应对高端PCB系统设计挑战

    印刷电路板(PCB)设计解决方案市场和技术领军企业Mentor Graphics(Mentor Graphics)宣布推出HyperLynx® PI(电源完整性)产品,满足业内高端设计者对于高性能电子产品的需求。HyperLynx PI产品不仅提供简单易学、操作便捷,又精确的分析,让团队成员能够设计可行的电源供应系统;同时缩短设计周期,减少原型生成、重复制造,也相应降低产品成本。随着当今各种高性能/高密度/高脚数集成电路的出现,传输系统的设计越来越需要工程师与布局设计人员的紧密合作,以确保能够透过众多PCB电源与接地结构,为IC提供纯净、充足的电力。配合先前推出的HyperLynx信号完整性(SI)分析和确认产品组件,Mentor Graphics目前为用户提供的高性能电子产品设计堪称业内最全面最具实用性的解决方案。“我们拥有非常高端的用户,受到高性能集成电路多重电压等级和电源要求的驱使,需要在一个单一的PCB中设计30余套电力供应结构。”Mentor Graphics副总裁兼系统设计事业部总经理Henry Potts表示。“上述结构的设计需要快速而准 确的直流压降(DC Power Drop)和电源杂讯(Power Noise)分析。拥有了精确的分析信息,电源与接地层结构和解藕电容数(de-coupling capacitor number)以及位置都可以决定,得以避免过于保守的设计和高昂的产品成本。”

    标签: PCB 电源完整性 高端

    上传时间: 2013-10-31

    上传用户:ljd123456

  • A simple C program to strobe the LEDsvia Port D. The strobe rate is to be set by adjusting the volta

    A simple C program to strobe the LEDsvia Port D. The strobe rate is to be set by adjusting the voltage drop over a potentiometer that is sampled by an ADC.

    标签: strobe D. adjusting the

    上传时间: 2014-01-09

    上传用户:lifangyuan12

  • The code is fairly straightforward, except perhaps for the call to convertColumnIndexToModel. That c

    The code is fairly straightforward, except perhaps for the call to convertColumnIndexToModel. That call is necessary because if the user moves the columns around, the view s index for the column doesn t match the model s index for the column. For example, the user might drag the Vegetarian column (which the model considers to be at index 4) so it s displayed as the first column — at view index 0. Since prepareRenderer gives us the view index, we need to translate the view index to a model index so we can be sure we re dealing with the intended column

    标签: convertColumnIndexToModel straightforward perhaps fairly

    上传时间: 2013-12-10

    上传用户:it男一枚

  • MFC Black Book Introduction: Are you an MFC programmer? Good. There are two types of MFC programme

    MFC Black Book Introduction: Are you an MFC programmer? Good. There are two types of MFC programmers. What kind are you? The first kind are the good programmers who write programs that conform to the way MFC wants you to do things. The second bunch are wild-eyed anarchists who insist on getting things done their way. Me, I’m in the second group. If you are in the same boat (or would like to be) this book is for you. This book won’t teach you MFC—not in the traditional sense. You should pick it up with a good understanding of basic MFC programming and a desire to do things differently. This isn’t a Scribble tutorial (although I will review some fundamentals in the first chapter). You will learn how to wring every drop from your MFC programs. You’ll discover how to use, abuse, and abandon the document/view architecture. If you’ve ever wanted custom archives, you’ll find that, too.

    标签: MFC Introduction programmer programme

    上传时间: 2015-05-30

    上传用户:youke111

  • SQL是英文Structured Query Language的缩写

    SQL是英文Structured Query Language的缩写,意思为结构化查询语言。SQL语言的主要功能就是同各种数据库建立联系,进行沟通。按照ANSI(美国国家标准协会)的规定, SQL被作为关系型数据库管理系统的标准语言。SQL语句可以用来执行各种各样的操作,例如更新数据库中的数据,从数据库中提取数据等。目前,绝大多数流 行的关系型数据库管理系统,如Oracle, Sybase, Microsoft SQL Server, Access等都采用了SQL语言标准。虽然很多数据库都对SQL语句进行了再开发和扩展,但是包括Select, Insert, Update, Delete, Create, 以及Drop在内的标准的SQL命令仍然可以被用来完成几乎所有的数据库操作。下面,我们就来详细介绍一下SQL语言的基本知识。

    标签: Structured Language Query SQL

    上传时间: 2013-12-20

    上传用户:410805624

  • SQL(Structured Query Language

    SQL(Structured Query Language,结构查询语言)是一个功能强大的数据库语言。SQL通常使用于数据库的通讯。ANSI(美国国家标准学会)声称,SQL是关系数据库管理系统的标准语言。SQL语句通常用于完成一些数据库的操作任务,比如在数据库中更新数据,或者从数据库中检索数据。使用SQL的常见关系数据库管理系统有:Oracle、 Sybase、 Microsoft SQL Server、 Access、 Ingres等等。虽然绝大多数的数据库系统使用SQL,但是它们同样有它们自立另外的专有扩展功能用于它们的系统。但是,标准的SQL命令,比如"Select"、 "Insert"、 "Update"、 "Delete"、 "Create"和 "Drop"常常被用于完成绝大多数数据库的操作。

    标签: Structured Language Query SQL

    上传时间: 2015-10-06

    上传用户:nairui21

  • SQL(Structured Query Language

    SQL(Structured Query Language,结构查询语言)是一个功能强大的数据库语言。SQL通常使用于数据库的通讯。ANSI(美国国家标准学会)声称,SQL是关系数据库管理系统的标准语言。SQL语句通常用于完成一些数据库的操作任务,比如在数据库中更新数据,或者从数据库中检索数据。虽然绝大多数的数据库系统使用SQL,但是它们同样有它们自立另外的专有扩展功能用于它们的系统。但是,标准的SQL命令,比如"Select"、 "Insert"、 "Update"、 "Delete"、 "Create"和 "Drop"常常被用于完成绝大多数数据库的操作。

    标签: Structured Language Query SQL

    上传时间: 2013-12-11

    上传用户:qq1604324866

  • phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Cur

    phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields

    标签: administration phpMyAdmin the intended

    上传时间: 2015-10-30

    上传用户:时代电子小智