ic 74138

(8000), @sql4 varchar (8000), @i int, @ic varchar (20) --Generate a Data processing temp tableSelect Id=identity (int,0,1), gid=0, A= ', [' + Unit name + ']=sum ' (case unit name when '+ Unit name + ' then sales else 0 end 'Into # from (select DISTINCT unit name from TB) a --Determine how many variables are needed to handleSelect @i=max (Len (a)) from #Print @iSet @i=7800/@i --Grouping temporary tablesUpdate # Set Gid=id/@iSelect @i=max (GID) from #

IC introduction many people are using OracleInstantClient, which provides an easy and fast way to deploy applications based on OCI, OCCI, and JDBCOCI. By adding more tools, InstantClient can become a more powerful tool, as follows: 1. tnsping2.sqlldr3. tkprf4.expimp5. OCM6. your own tool IC introduction many people are using Oracle Instant Client, which provides an easy and fast way to deploy OCI, OCCI, and

1. Dip dual-row direct insert Encapsulation Dip (dualin-line package) is an integrated circuit chip encapsulated in the form of Dual-row direct insertion. Most small-and medium-sized Integrated Circuits (IC) use this encapsulation form, generally, the number of pins cannot exceed 100. The CPU chip in dip package has two pins and needs to be inserted into the chip socket with dip structure. Of course, it can also be directly inserted into the circuit

According to the title, this blog article introduces this small example. The following blog summarizes JS Object-Oriented Knowledge. The purpose of this small example is to understand JS Object-Oriented Knowledge. Take an example and try it. Then compare it with the system summary. This piece of knowledge is not very effective when watching videos. Many of them are in the fog. In this example, it feels awkward. Because the Javascript language does not provide smart prompts in most cases. In ad

-impedance state, the two switches must be disconnected at the same time (or use a transport door on the output port), which can be used as the input state, some IO ports of the AVR Microcontroller are in this structure. Characteristics and Application of Open leakage Channels In circuit design, we often encounter the concepts of open drain and open collector.The "drain" mentioned in the so-called open-leakage circuit concept refers to the drain pole of the MOs. Similarly, the "set" in the open

During full screen program development, the current input method in the editing box needs to be determined in time to facilitate texture presentation on the interface. The following three steps can be used to complete this function:1. Add the relevant header file to the. h file.# Include # Include 2. Add the class definition used in the. h file.Struct s_uid: Public tuid{S_uid (int I){Iuid = I;}}; Class makneditingstateindicator{Public:Virtual void setstate (takneditingstate astate) = 0;Virtual

view the request, response, and other objects or internal behavior of the servlet (non-service method). The following code demonstrates how to use httpunit to simulate the servlet container and test the internal behavior of the servlet through the invocationcontext object, such as controlling request, session, and response. // Create the Servlet runtime environment ServletRunner sr = new ServletRunner (); // register Servletsr with the environment. registerServlet ("InternalServlet", InternalSe

"# Include Using namespace WG;Class ctesticeimpl: Public wgtestice{Public:Ctesticeimpl (){}~ Ctesticeimpl (){} Int Ping (const ice: Current = ice: Current ()){STD: cout Return 0;} Int gettime (STD: string strtime, const ice: Current = ice: Current ()){Time_t TT = Time (null );Struct TM TM1;Struct TM * pnow; Pnow = localtime_r ( TT, TM1 );If (! Pnow){Strtime = "error ";Return-1;}Char Buf [32] = {0 };Sprintf (BUF, "% 04d-% 02d-% 02d % 02d: % 02d: % 02d ",Pnow-> maid + 1900,Pnow-> tm_mon +

Review the webpage content field permissions. my requirement is that visitors cannot see the permissions [! -- Ic --] content in the field, which can be viewed after logon. The following code can still be viewed by visitors [! -- Ic --] content in the field, you can also see [! -- Goneng --] the content in the field is to prevent visitors from viewing the content in my restricted field! Original post: bbs.p

1. Read the IC spec carefully and we need to read some useful information from it. 1) IC correct (or can say accurate) power-up timing, which includes a host-side control IC when there are several pins (regulator, GPIO, etc.), these pin-tight on the point of timing is how. 2) when the IC power-on, the need to send

U disk's structure is relatively simple, mainly by the USB plug, the main control chip, voltage regulator IC (LDO), crystal oscillator, Flash (Flash), PCB board, SMD Resistor, capacitance, light-emitting diode (LED) and other components. Here are some of their respective roles. USB plug: Easy to appear and circuit board virtual welding, causing U disk can not be computer recognition, if the power supply foot virtual welding, will make U disk plug int

U disk's structure is relatively simple, mainly by the USB plug, the main control chip, voltage regulator IC (LDO), crystal oscillator, Flash (Flash), PCB board, SMD Resistor, capacitance, light-emitting diode (LED) and other components. Also some u disk will be in usb+5v and voltage regulator IC string a 0 ohm protection resistor, at this time voltage regulator IC