Run the SQL script given to you to create a Library database. Note that each row in the Book table denotes a book copy. Thus, if the library carries three copies of the title "DBMS", there will be three rows in the Book table, one for each copy. WRITE the SQL statements to do the following against the database
標(biāo)簽: the database Library script
上傳時(shí)間: 2014-08-29
上傳用戶(hù):nanxia
Let the following relational tables be given: R = (A, B, C) and S = (D, E, F) where A, B, C, D, E, and F are the attributes (columns). WRITE the SQL statements that will express each of the queries given below:
標(biāo)簽: relational following tables given
上傳時(shí)間: 2014-01-14
上傳用戶(hù):cx111111
SOPC實(shí)驗(yàn)--自定義PWM組件:以帶一個(gè)Avalon Slave 接口的PWM 組件為例,說(shuō)明如何自定義組件。,一個(gè)Avalon Slave 接口可以有clk、chipselect、address、read、readdata、WRITE 及WRITEdata 等信號(hào),但這些信號(hào)都不是必需的。 一、功能 我們要實(shí)現(xiàn)的PWM 組件具有以下功能: 1. PWM 的周期可改,用period 寄存器存儲(chǔ); 2. PWM 的占空比可改,用duty 寄存器存儲(chǔ)。 二、Avalon Slave 接口信號(hào)的設(shè)計(jì) 1.Clk:為PWM 提供時(shí)鐘; 2.WRITE:寫(xiě)信號(hào),可以通過(guò)Avalon Slave 總線(xiàn)將period 和duty 值從Nios II 應(yīng)用程序 傳送到組件邏輯中。 3.WRITEdata:寫(xiě)數(shù)據(jù)。通過(guò)此數(shù)據(jù)線(xiàn)傳送period 和duty 值。 4.Address:本例中有兩個(gè)寄存器,因此可用一根地址線(xiàn)表示。 5.全局信號(hào)。本例中PWM 的輸出用來(lái)驅(qū)動(dòng)LED 燈顯示,這個(gè)信號(hào)不屬于Avalon 接 口信號(hào)。
標(biāo)簽: PWM Avalon Slave SOPC
上傳時(shí)間: 2013-12-28
上傳用戶(hù):bibirnovis
為L(zhǎng)INUX設(shè)計(jì)一個(gè)簡(jiǎn)單的二級(jí)文件系統(tǒng)。要求做到以下幾點(diǎn): 1、 可以實(shí)現(xiàn)下列幾條命令 Login 用戶(hù)登錄 Dir 列文件目錄 Create 創(chuàng)建文件 Delete 刪除文件 Open 打開(kāi)文件 Close 關(guān)閉文件 Read 讀文件 WRITE 寫(xiě)文件 2、列目錄時(shí)要列出文件名、物理地址、保護(hù)碼和文件長(zhǎng)度。 3、源文件可以進(jìn)行讀寫(xiě)保護(hù)。
標(biāo)簽: Create Delete LINUX Login
上傳時(shí)間: 2016-07-16
上傳用戶(hù):jeffery
三星公司官方JTAG下載工具SJF2440源代碼下載。SJF2440 can program SMDK2440 flash memory (K9S1208,Intel E28F128,AMD29LV800BB) through JTAG port and read/WRITE data from/to a specified address.
標(biāo)簽: 2440 SJF program memory
上傳時(shí)間: 2014-01-20
上傳用戶(hù):腳趾頭
.ifnz I2C_SUPPORT ************************************************************** Function : fProcessI2cRead Description : process I2C WRITE function Input : IOP_DATA1_H=rCtrlByte,IOP_DATA1_L=rAddr Output : NONE ************************************************************** fProcessI2cRead: fetch parameter lda IOP_DATA1_H sta rCtrlByte lda IOP_DATA1_L sta rAddr jsr fI2cSendCmdAddr bcs lReadI2CFail
標(biāo)簽: C_SUPPORT Function ifnz fPro
上傳時(shí)間: 2016-07-21
上傳用戶(hù):xaijhqx
MT: windows NT/2000/XP command line tape manipulation written to format a tape windows-XP backup refused to WRITE or format... and satisfy my curiosity Can be used for crude data recovery (combine seek and read)
標(biāo)簽: tape manipulation windows-XP windows
上傳時(shí)間: 2013-12-23
上傳用戶(hù):tb_6877751
Over the past years, we have witnessed destructions of various kinds caused by human actions. As a university student, WRITE a letter to our society to
標(biāo)簽: destructions witnessed actions various
上傳時(shí)間: 2014-11-23
上傳用戶(hù):一諾88
C++ Footprint and Performance Optimization contains case studies and sample code to give readers concrete examples and proven solutions to problems that don t have cut and paste solutions. The market for miniature computer programming is exploding. C++ Footprint and Performance Optimization supplies programmers the knowledge they need to WRITE code for the increasing number of hand-held devices, wearable computers, and intelligent appliances. This book gives readers valuable knowledge and programming techniques that are not currently part of traditional programming training.
標(biāo)簽: Optimization Performance Footprint and
上傳時(shí)間: 2014-01-06
上傳用戶(hù):杜瑩12345
socket編程原理:UNIX系統(tǒng)的I/O命令集,是從Maltics和早期系統(tǒng)中的命令演變出來(lái)的,其模式為打開(kāi)一讀/寫(xiě)一關(guān)閉(open-WRITE-read- close)。在一個(gè)用戶(hù)進(jìn)程進(jìn)行I/O操作時(shí),它首先調(diào)用“打開(kāi)”獲得對(duì)指定文件或設(shè)備的使用權(quán),并返回稱(chēng)為文件描述符的整型數(shù)
上傳時(shí)間: 2016-08-12
上傳用戶(hù):懶龍1988
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