10m transceiver

= Total.tablespace_name; --------------------------------------------------------------------------------------------------------------- -------------- 1. Create TABLE space: Create tablespace test datafile '/u01/test.dbf ' size 10M uniform size 128k #指定区尺寸为128k, block size is the default 8K #大文件表空间 Create Bigfile tablespace big_tbs datafile '/u01/big_tbs.dbf ' size 100G 2. Non-standard table show parameter db alter system set DB_2K_CACHE_SIZE=

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 is 300M) Used Disk quota 10000 Kbytes (you've

into the old version of the Dictionary management table space. --------------------------------------------------------------------table space Additions and deletions related operations:--Create TABLE space:1. Create a data file with an initial size of 10M, each time self-growth of 1M, the maximum self-growth of 20M table space. sql> Create tablespace TBS2 datafile '/oracle/tbs01.dbf ' size 10M autoextend

user_tablespaces where tablespace_name = ' pipdb_dat1 '; if (cnt = 0) Then data_ts_name: = ' pipdb_dat1 '; bcreatets: = true; else bcreatets: = false; End If; Else Select COUNT (*) into CNT From User_tablespaces where tablespace_name = Data_ts_name; if (cnt = 0) Then bcreatets: = true; else bcreatets: = false; End If; End If; If Bcreatets then data_ts_path: = ' ${pm.or.data_path} '; If InStr (Data_ts_path, ' ${') > 0 or length (data_ts_path) = 0 or nbsp ; Data_ts_path Is NU

1068937216 bytesFixed Size 2260088 bytesVariable Size 671089544 bytesDatabase buffers 390070272 bytesRedo buffers 5517312 bytesSql>Sql> Show Parameter SPFileNAME TYPE VALUE------------------------------------ ----------- ----------------------------------------------------------SPFile String/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileprod.oraSql>Sql> select status from V$instance;STATUS------------STARTEDSql>7: Write CREATE DATABASE scriptORACLE11G Official documents:Administrator ' s gui

1. Find the most resource-consuming process ID with top[bin]# TopTop-16:56:14 up 119 days, 6:17, 7 users, load average:2.04, 2.07, 2.09tasks:256 Total, 1 running, 254 sleeping, 0 stopped, 1 zombieCpu (s): 5.0%us, 0.3%sy, 0.0%ni, 94.2%id, 0.4%wa, 0.0%hi, 0.0%si, 0.0%stmem:8303056k Total, 7368528k used, 934528k free, 515232k buffersSwap:www.qixoo.qixoo.com 16386260k Total, 27312k used, 16358948k free, 4670096k cachedPID USER PR NI VIRT RES SHR S%cpu%MEM time+ COMMAND5244 Root 0 1940m 1.3g

directories to use Keys_zone: Specifies the name of the cache zone and the size of the cache space Example: Proxy_cache_path/data/nginx/cache levels=1:4Keys_zone=mycache:10m; Description1: Indicates that a first-level directory can consist of 1 characters4: Indicates that a level two directory can be composed of 4 characters Mycache: is the name of this cache area 10m: can cache

function Extend (subclass, superclass) {2 function O () {3 This. constructor =Subclass;4 }5O.prototype =Superclass.prototype;6Subclass.prototype =Newo ();7 returnSubclass.prototype;8 }9 /*Ten subclass is a subclass, superclass is the parent class, the Extend function lets subclass inherit superclass's prototype method, and returns the subclass prototype; One This kind of inheritance is also used most, and the extends of ES6 is realized by this way, which can be said to be more

The most recent week is busy, the main work is to do a call "Keyboard Wizard" things, simply put a lot of data into memory, the data for quick retrieval, and then find the input conditions to match the best 10 records and show. Specific and the following two stocks of software related functions similar to: Data in the form of text exists in the file, and the volume of data is large, there are nearly 200,000, each record has several fields, separated by delimiters. Using 60,000 recor

The most recent week is busy, the main work is to do a call "Keyboard Wizard" things, simply put a lot of data into memory, the data for quick retrieval, and then find the input conditions to match the best 10 records and show. Specific and the following two stocks of software related functions similar to: Data in the form of text exists in the file, and the volume of data is large, there are nearly 200,000, each record has several fields, separated by delimiters. Using 60,000 records of the

Byte and bit relationships: abyte equals 8bit。When the initials were two, they were all B., accustomed to the byte abbreviationWith uppercase B, and bitWith a lowercase b, but a lot ofWhen writing is confusing, soSee the bandwidth of the host logo toLet's find out if it's byte orIs bit. Generally speaking, room bandwidth, host port bandwidth areIt's bit, but some of the mainMachine limits peak bandwidth, and thisA host commercial bytE, some use bit, phase8 times times worse, so make sureChu (if

/system01. Dbf1 UNDOTBS1 l:/oracle/oradata/ibm/undotbs01. Dbf3 Cwmlite l:/oracle/oradata/ibm/cwmlite01. Dbf4 Drsys l:/oracle/oradata/ibm/drsys01. Dbf5 EXAMPLE l:/oracle/oradata/ibm/example01. Dbf6 INDX l:/oracle/oradata/ibm/indx01. Dbf7 ODM l:/oracle/oradata/ibm/odm01. Dbf8 TOOLS l:/oracle/oradata/ibm/tools01. Dbf9 USERS l:/oracle/oradata/ibm/users01. DbfTen XDB l:/oracle/oradata/ibm/xdb01. DbfTdata_01 L:/oracle/oradata/ibm/tdata_01.oraTindex_01 L:/oracle/oradata/ibm/tindex_01.ora 12 rows have b

network connections that a key corresponds to, and can be limited to streams such as IP and domain name dimensions. The limit_req is used to limit the average rate of requests for a key, and there are two uses: Smooth mode (delay) and allow burst mode (Nodelay). Ngx_http_limit_conn_module Limit_conn is a current limit for the total number of network connections that a key corresponds to. You can limit the total number of connections to an IP dimension by IP, or limit the total number of connect

transmission, using a pair of twisted pair.C, RS-422 need a terminal resistor, the resistance is about equal to the characteristic impedance of the transmission cable.(8) RS-485 Serial Bus interfaceA, RS-485 is established on the basis of RS-422 standards, increased multi-point, two-way communication capacity, communication distance of dozens of meters to thousands of meters.B, RS-485 transceiver with balanced transmission and differential reception,

Work Assignment Descriptionin the previous project,HT Company for HW deployment of Windows Server after the 3 block 8G ( Experimental simulation ) hard drive, required to complete the following operations Project requirements:1. Upgrade these 3 disks to dynamic disks. 2. Create a simple volume on disk 1 with a size of 10M, formatted as NTFS, and the volume labeled E : 3. Upon completion, expand the E volume, provided by disk 1 and Disk 2

For Java memory Overflow, if you configure-xx:+heapdumponoutofmemoryerror, it is clear that a dump file will be generated when the heap memory overflows. But the permanent generation of memory overflow is not clear whether it will be generated, today to do an experiment:permanent memory overflow, with dump file. the JVM parameter is-xx:permsize=10m-xx:maxpermsize=10m-xx:+heapdumponoutofmemoryerrorImport Jav