updates, this will reduce the CPU load, but in other cases, this is the worst, even if the table is compressed. It should be placed at the end only when it is updated frequently, but not usually.
The program should be encoded in a way that follows the logical process
Actual: pseudo code or a logical process diagram does not need to consider performance-related encoding methods. This is very dramatic in the OLTP transaction code.
Most processes are not performed in SQL
Reality: in fact, the oppo
validity. This is usually something else, but should be used in real parent-child relationship.
8. A table can contain at most one or two indexes.
Actual: The table should have multiple indexes according to performance requirements.
9. Non-partitioned indexes (NPI) should not be used, especially in large tables.
Actually: this is related to countless problems, which can be overcome in general, but NPI
in F.I: Protocol ID, 2-bit hexadecimal number.J: Data encoding scheme, 2-bit hexadecimal number.K: Valid, 2-digit hexadecimal number.L: User data length, 2 hexadecimal digits.M: User data, whose length is determined by the data in L. J is set to use UCS2 encoding, here is the Unicode character in English and Chinese.A simple description of PDU encoding protocolExample 1 Send: Smsc number is +8613800250500, the other number is 13693092030, the message content is "hello!". The PDU string issued f
message, the SMSC address can be used instead of 00.Like sending "Hello!" To 13554855071. The code is as follows:At+cmgf=0\rat+cscs= "UCS2" \ rAt+cmgs=21\r"0011000d91683155845570f1000801064f60597d0021"0x1A********************************************************************************0891683108502105f011000d91683155845570f1000801064f60597d00210891683108502105F0//SMS Address11000d91683155845570f1000800//14064f60597d0021What is PDU Mode?It is a way to send or receive SMS messages from a mobile ph
.
91: SMS Center number type, 91 is TON/NPI. TON/NPI adhere to the international/e.164 standard, refers to the number before the "+" number, but also can have other values, but 91 most commonly used.
683108501505F0: The SMS number is the service center address used. Due to the location of a slight processing, the actual number should be: 8613805515500 (letter F means the length minus 1), thi
CMPP error code (zzzz)
Error code error description remarks
0x00000000 successful
0x00000001 other errors
0x00000002 reserved for SMSC vendor definition Error
0x00000010 message length error
0x00000011 command length error
The Message ID 0x00000012 is invalid.
0x00000013 has no permission to execute this command
0x00000014 Reserved
The System ID is invalid for 0x00000020.
0x00000021 invalid password
0x00000022 invalid systemtype
0x00000023 Reserved
0x00000040 address Error
0x00000041 exceeds t
, the following program uses the acme. Collections. Stack class from the acme. dll assembly:
Using system;Using acme. collections;
Class Test{Static void main (){Stack S = new stack ();S. Push (1 );S. Push (10 );S. Push (1, 100 );Console. writeline (S. Pop ());Console. writeline (S. Pop ());Console. writeline (S. Pop ());}}
If the program is saved as a test. CS file, the compile CME. dll can be referenced by the/R option when test. CS is compiled:
CSC
+ CCID to obtain the SIM card ID. This command causes the module to read the EF-CCID file on the SIM card.9. At + GCAP capability table. (Supported functions)10. A/repeat the previous command. Only the/command cannot be repeated. This command repeats the previous command.11. Shut down at + cpof. This special command stops the GSM software stack and hardware layer.The command at + cfun = 0 has the same function as + cpof.12. At + cfun: Set the telephone capacity. This command selects the functio
-- Help ---------------------------------------------------------------
\ HM show manual for word under the cursor (n, I)\ HP show plugin help (n, I)
-- Comments -----------------------------------------------------------
\ Cl end-of-line comment (n, V, I)\ CJ adjust end-of-line comment (s) (N, V, I)\ CS set end-of-line comment column (N)\ C * code-> comment/**/(n, V)\ CC code-> comment // (n, V)\ Co comment-> code (n, V)\ CFR Frame Comment (n, I)\ CFU function comment (n, I)\
Now we will introduce how to implement PPP dial-up Internet access. Create the PPP directory under/system/etc and the following files under the PPP Directory: 1. init. GPRS-pppd
#! /System/bin/sh
# An unforunate wrapper script
Pppd_pid =
/System/bin/setprop"Net. GPRS. PPP-Exit"""
/System/bin/log-T pppd "Starting pppd"
/System/bin/pppd call GPRS $ *
Pppd_exit = $?
Pppd_pid = $!
/System/bin/log-T pppd "pppd exited with $ pppd_exit"
/System/bin/setprop"Net. GPRS. PPP-Exit""$ Pppd_exit"
SIM card. This command allows the module to read the Ef-ccid file on the SIM card.9. At+gcap the ability to obtain a table. (Supported Features)10. A/repeats the last command. Only A/command cannot be duplicated. This command repeats the previous command executed.11. AT+CPOF shut down the machine. This special command stops the GSM software stack and the hardware layer. Function of command at+cfun=0Same as +CPOF.12. At+cfun set the telephone to be able. This command selects the function level o
Format:a/Command return: The value returned by the last at commandThis command repeats the previous command executed1.21 AT+CPOFCommand explanation: Shutdown; This special command stops the GSM software stack and the hardware layerCommand Format:at+cpofCommand return: OKTest Result: At+cpof OkNote: at+cpofExecute at+cfun=1A t+cpof=1The module can be re-worked by a hardware reset module.1.22 At+cmeeCommand explanation: Error reporting of the module;Command formats:at+cmee=0Command return: OKAt+c
command causes the module to read the EF-CCID file on the SIM card.9. At + GCAP capability table. (Supported functions)10. A/repeat the previous command. Only the/command cannot be repeated. This command repeats the previous command.11. Shut down at + cpof. This special command stops the GSM software stack and hardware layer.The command at + cfun = 0 has the same function as + cpof.12. At + cfun: Set the telephone capacity. This command selects the function level of the mobile site.13. At + CPA
Tags: CME cucm Cisco UnifiedThere is a logical association between the commands and must be configured in a sequential order.1. Configure voice encoding and SIP address formatVoice class URI 2 sipHost IPv4:address of CUCMVoice Class codec 1Codec Preference 1 G729R8Codec Preference 2 G711ulawCodec Preference 3 G711alawCodec Preference 4 g722-642. Configure VoIP Service Specific parametersVoice service VoIPIP Address Trusted ListIPv4 The address of the
Label:There's a headache today, and that's the open navicat display.Navicat 2003-can ' t connect to MYSQL server on ' localhost ' (10061)On the internet to see a variety of great God's solution, feel the code is very messy can not understand, finally step by step to solve theFirst right-click Computer-Admin-service and application open service there is no MySQL service. That's the problem.I recommend that you download a mysql5.6 version (the mysql5.7 results I downloaded initially show that the
your SIM card location, such as the Mobile SMS Center number:
Mobile number Received: 13638197275Hangzhou SMS Center No.: 13800571500SMS Content: HelloTo send this message, the phone will not execute until it is encoded, and the code will become the following string of characters:0891683180501705f011000d91683136187972f5000800044f60597dDon't get it, explain this string of code from beginning to end:08– refers to the length of the message center number, which means that the length of (6831805017
Use the scene: often we install their own module after the start to discover that a certain port is occupied, in order to ensure that their process can start normally, need to find out who occupied the port, and kill the process, and then start their own process, the specific methods of operation are as follows:
The Linux platform uses the following
: Using the lsof command, you can download the Lsof component under the CentOS platform through Yum install Lsof, and here is to see if Port 11,000t
Just do the usual part of the brief introduction, detailed content see T-SQL online books.1, statistic function AVG, COUNT, max, Min, sumMost parties do not count rows with null values. You can use it with distinct to remove duplicate rows. Can be grouped with GROUP by2, Mathematical functionsSQRT (n) returns the square root of a numberSquare (n) returns the squared of a numberCeiling (n) returns the smallest integer greater than or equal to nFloor (n), returns the largest integer less than or e
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