recommended to read one of my previous article: SQL in the Where condition, in the database extraction and application analysis. Here, I give a direct analysis of the results:
Index key:pubtime > 1 and Puptime
Index Filter:userid = ' hdc '. This condition, which can be filtered on the Idx_t1_pu index, is not part of index Key.
Table Filter:comment is not NULL. This condition, which cannot be filtered on the Idx_t1_pu index, can be filtered only on the clustered inde
filtered only on the clustered index.
After analyzing the composition of the SQL where condition, take a look at the SQL lock-up condition (RR isolation level) as shown in:It can be seen that, under the repeatable read isolation level, the range determined by index key is added to the gap lock; The index filter locks the given condition (UserID = ' hdc ') when filtering, depending on the version of MySQL, in MySQL Before version 5.6, index Condition pushdown (
identification. Now, it may be. The distance sensor calls the auto-kill screen.
Service and Support
Audio Support supports formats such as Mp3/wav/eaac+/ac3/flac
Video Support supports formats such as mp4/divx/xvid/wmv/h.264/h.263
Image Support supports formats such as Jpeg/png/gif/bmp
Common Functions Calculator, Memo, schedule, ebook, alarm clock, calendar, recorder, situational mode, theme mode, map software
Busin
and other items have been used in the record, if any, most are not brand new mobile phones.
6, look at the warranty
Regular dealers will take the initiative to invoice, and can enjoy the three packs of services nationwide. Parallel mobile phones and refurbished mobile phones can not enjoy the regular mobile phone "three packs" of all the rights and interests stipulated. If the sellers can't do this, then the phone is definite
Squid performance analysis to obtain information status of squid execution 1, when you do not know what information can be queried./squidclient-h127.0.0.1-p80mgr: 2, GeneralRuntimeInformation, view the general status ../squidclient-h127.0.0.1-p80...
Squid performance analysisObtain information about squid execution1. if you do not know any information./Squidclient-h 127.0.0.1-p 80 mgr:2. View General Runtime Information../Squidclient-h 127.0.0.1-p 80 mgr: info[Root @ bbs bin] #./squidclient-h 12
operators of the same level,The priority inside the stack is higher than that outside the stack.. Design the operator priority table accordingly: (isp and icp indicate the priorities inside and outside the stack respectively, and # indicates the end of the string)
Table 1 operator priority table
Operator
#
(
+ ,-
*,/
)
Isp
0
1
3
5
6
Icp
0
6
communication is normal.
Analysis and maintenance: Check whether the equipment and signal channels at both ends are normal, and the false alarm is caused by the error information of the digital relay signaling processing board. Manually reset the DTP board of the digital relay signaling processor. After the reload, the fault disappears.
Program-controlled switch failure phenomenon: HJD04RM maintenance station shows "poor communication", observe Control Frame
only be filtered on the clustered index.
After analyzing the composition of the SQL where condition, take a look at the lock on this SQL (RR isolation level), as shown in the following illustration:
It can be seen from the diagram that the range defined by index key is added to the gap lock under repeatable read isolation level, and when the index filter lock given condition (UserID = ' hdc ') is filtered, depending on the MySQL version, in MySQL 5.6 version, not supported index Conditio
Configure the proxy server array with the Cache_peer option in the squid.conf configuration file, and other options to control how the proxy partner is selected. Cache_peer is used in the following format: Cache_peer hostname type http_port icp_port option A total of 5 options can be configured:1) hostname: Refers to the requested sibling child proxy server or parent proxy server. Can be represented by host name or IP address;2) Type: Indicates the type of hostname, whether it is a sibling child
In the high performance MySQL book is devoted to the narrative, named avoiding multiple Range Conditions, in a composite index, only one Range-type query field can be saved and placed at the end of the composite index, otherwise The index after the range Type query field is not valid. The detailed introduction everybody may inspect by oneself.
8.2.1.6 Index Condition pushdown optimization was recently read in mysql5.6 's documentation.
The principle of ICP
occupancy rate3. How often does the server restart4. The difference between Xeon and ordinary P4 CPUThe difference between 5.IDE and SCSI hard drives6. What is the real ICP card7.CGI and PHP than ASP security error8. The server put in Beijing and Shanghai and so on the speed really fast?
A. Space-type
1. How to view the size of space
After you log in to FTP, you will see in the Information box
Maximum disk Quota limited to 300000 Kbytes (your space i
condition, which cannot be filtered on the Idx_t1_pu index, can be filtered only on the clustered index.
After analyzing the composition of the SQL where condition, take a look at the SQL lock-up condition (RR isolation level) as shown in:It can be seen that, under the repeatable read isolation level, the range determined by index key is added to the gap lock; The index filter locks the given condition (UserID = ' hdc ') when filtering, depending on the version of MySQL, in MySQL Before ve
read one of my previous article: SQL in the Where condition, in the database extraction and application analysis. Here, I give a direct analysis of the results:
Index key:pubtime > 1 and Puptime
Index Filter:userid = ' hdc '. This condition, which can be filtered on the Idx_t1_pu index, is not part of index Key.
Table Filter:comment is not NULL. This condition, which cannot be filtered on the Idx_t1_pu index, can be filtered only on the clustered index.
Af
previous article: SQL in the Where condition, in the database extraction and application analysis. Here, I give a direct analysis of the results:
Index key:pubtime > 1 and Puptime
Index Filter:userid = ' hdc '. This condition, which can be filtered on the Idx_t1_pu index, is not part of index Key.
Table Filter:comment is not NULL. This condition, which cannot be filtered on the Idx_t1_pu index, can be filtered only on the cluster
condition in a SQL? Specific introduction, it is recommended to read one of my previous article: SQL in the Where condition, in the database extraction and application analysis. Here, I give a direct analysis of the results:
Index key:pubtime > 1 and Puptime
Index Filter:userid = ' hdc '. This condition, which can be filtered on the Idx_t1_pu index, is not part of index Key.
Table Filter:comment is not NULL. This condition, which cannot be filtered on the Idx_t1_pu
Filter:userid = ' hdc '. This condition, which can be filtered on the Idx_t1_pu index, is not part of index Key.
Table Filter:comment is not NULL. This condition, which cannot be filtered on the Idx_t1_pu index, can be filtered only on the clustered index.
After analyzing the composition of the SQL where condition, take a look at the SQL lock-up condition (RR isolation level) as shown in: It can be seen that, under the repeatable read isolation level, the range determine
Generally speaking, the bulk of the CPU does not have a radiator and the package is a year, and the boxed CPU is with the radiator of the quality package is three years. From a technical point of view, there is no essential difference between bulk and boxed CPUs, at least in terms of quality. Theoretically, there is no gap in performance, stability, and overclocking potential between boxed and bulk products, but there are certain differences in warranty
strategy.
4. Management function
The existing system simple management function, not only makes the work efficiency greatly reduces, moreover cannot realize the operation: if does not have the ICP Virtual operator Management module, cannot solve the content source and the copyright question, thus realizes the ISP and the ICP Mutual win.
5. Other
Solution
Beijing John Company's shine streaming media va
Do you know what a Linux calculator is? This very advanced application technology will be explained by me very much. Where is the Linux calculator NB? Next I will introduce the unlimited field of the Linux calculator.
19 -- bc Linux Calculator
[Root @ CentOS4 ~] # Bcbc 1.06 Copyright 1991-1994,199 7, 1998,200 0 Free Software Foundation, Inc. this is free software with absolutely no warranty. for details type 'war
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.