SAS and SATA Hard Drive guidelines
When you add a hard disk drive to the server, follow these general rules:
The system will automatically set all drive numbers
If you are using only one hard drive, install the drive in the home with the smallest drive letter.
When multiple drives are divided into the same drive array, these drives must have the same capacity to maximize storage space efficiency.
Drives in the same logical volume must have the sa
Data input and output in SAS are: 1. By column: Input variable name Data score; /* Create a data set on the score */Input name $1-10 Math 11-12 Chinese 17-18 中文版 26-27; /* For each variable, enter data by column */Datalines; /* Tip Below is the data line */Bital 90 92 88Martin 80 95 94Run2. List input: Input variable name Data /* Data set name default, default is data1*/Length City $9/* Specifies that the length of the character variable is 9 (the def
(%) any sequence of zero or more charactersproc SQL; Select Ffid, name, address from sasuser.frequentflyers where like ' % P%place ' * Spaces are also included in the string; Quit;3.6:using the sounds-like (=*) Operator to Select a spelling variationThe Sounds-like (=*) operator uses the SOUNDEX algorithm to compare each value of a column (or other Sql-expressi ON) with the word or words (or other sql-expression) so you specify.3.7:subsetting Rows by Using calcu
Tags: SAS XFS SSDAn OLTP performance comparison test was previously done: SAS vs SSD various modes MySQL TPCC OLTP comparison test results, this time to do the OLAP comparison test.The comparison test results are shown below:650) this.width=650; "Src=" http://dp.imysql.com:8080/files/upload_yejr_imysql/SAS_VS_SSD_MySQL_OLAP_benchmarking _20121225.jpg "style=" border:0px; "alt=" sas_vs_ssd_mysql_olap_benchma
. Therefore, whether static classes are used or not depends on the actual situation.
Ii. How does the log producer pass in the parameter or?
Iii. How to Write logs, synchronous or asynchronous?
4. Log File storage location and file size control.
5. Expansion problems.
I am going to talk about the second, third, fourth, and fifth points in one piece.
In fact, there are two types of logs: Fixed logs, such as system logs or internal framework logs, and user logs, such as in Web appli
After studying two days of SAS, SAS can finally obtain the file name and column name.
// Obtain the file column name
Libname da "C: \ test ";
Data ex;
Set da. QQ;
Run;
Proc transpose data = ex out = ex2;
VaR _ all _; // the table cannot be completely transposed before it is added. Some columns are always missing.
Run;
Proc print data = ex2;
Run;
// Obtain the file name in a folderFilename indata pipe 'di
Detailed operation on the SAS card function of HP computer, hp
Detailed operation on the SAS card function of HP computers in IDC Management
I. Software Removal Protection
1) After the computer is turned on, wait for the access to the dashboard selection system interface;
2) Press F1 to go To the BIOS page of the SAS card;
3 ). switch the cursor to >>> System Res
With the SAS Gplot/gchart module, simple charts can be drawn.1. Bar chart, doughnut chart, pie chart and so on;Proc Gchart data=xxxxx;Vbar varname;RunThis process contains several options, note that the difference between the subgroup and group options, subgroup is not listed, and group is drawn separately for different groups;2. Scatter plots, line charts, etc.Proc Gplot data=xxxxx;Plot y*x;RunWhen there are several different lines on the same table,
Data heartemp;Set Sashelp.heart;If bp_status= ' normal ' then delete;* blood pressure is not written to the data set, drop excludes variables, delete excludes observations;Keep status sex Weight_status bp_status;Rename bp_status = Bloodpressure;RunProc Print data= heartemp (obs=10);RunData mytemp;input x y;Z=x+y;/* Statistical odd even, evennumber+1 complete accumulation */If mod (z,2) =0 then evennumber+1;else oddnumber+1;Cards12 5568 68 9788 999114 8628 9738 6748 9778 234;RunProc Print;RunThis
1, missing values are missing, characters are missing;2, Problem: PROC tabulate watchmaking class There is missing, the purpose of the missing range of a non-missing value belongs to a class, the other in accordance with the actual operation, the remainder with other.PROC"0=" 1 ' = '. A CLASS "' 2 ' = ' 03. B CLASS "other = "04. OTHERS ";RUN;/* results, ' returned to ' 04. Other "*//* After testing, change (') to (') is correct, that is, the missing is "01. Missing "* *[
SAS function Learning1. Function Write format:1) General writing format: function name (parameter 1, parameter 2, ...) )2) Shorthand format: function name (of parameter 1-parameter n) or function name (of parameter 1 parameter 2 ...) )2. Function Introduction2.1 Character processing function1) substr 2) Scan 3) index 4) length 5) Compress 6) Translate 7) Trim 8) UpCase 9) lowcase) UrlDecode) (TRANWRD) rank) byte () repeat) reverse2.2 Mathematical arit
= Month prefix = Ctarget;run;Changes before and after effects are as followsBy statement grouping transpose datasetsFor each by group, the PROC transpose creates one observation for each variable the IT transposes. The by variable itself are not transposedI understand that the values of the first column of the transferred dataset are all previous variable names, and if by, the by variable does not transpose, but instead appears as a grouping variable in the first column (considering the case of
; Datalines;drug Alive -Drug DeadTenPlacebo Alive thePlacebo dead -; run;procFreq data=test; Table Group*Outcome/chisq norow Nocol nopercent; WeightCount; * If there is no weight, then the list is all 1; Runprocformat; Value Purfmt1 ="$ - +" 0 ="$ -"; run; * disordered qualitative double-variable analysis; procFreq data=Double. B_sales_inc; Tables Gender*Purchase/ chisq expected cellchi2 nocol nopercent; *CHISQ is the key to see Chi-square statistics; Format purchase purfmt.; T
corresponding link. Otherwise, an error occurs in the next output.
Filename outp 'C: \ Users \ Administrator \ Desktop \ mytestfortoday \ test.txt '; ODS listing select basicmeasures quantiles; * select the output result range, which can be univariate. age. male. basicmeasures; ODS listing file = outp; * select the output file; proc univariate DATA = sashelp. class; var weight; run; proc freq DATA = sashelp. class; Table sex; run; ODS listing;
4:ODS results on/off
When the program is large, clo
to customize the sheet name. By default, the sheet name is the same as that of the SAS dataset. note: sheet-name cannot end with $ */run. [file suffixes of various PCs and corresponding DBMS identifier] type of file suffix DBMS identifier Microsoft Excel :. XLS ------------- Excel (32-bit windows) ----------- XLS (Unix or 64-bit windows) DBASE. DBF ------------ dbf jmp. JMP ------------ JMP Lotus. wk4 ------------ wk4 paradox. DB ------------ paradox
According to the order list, the HP rx2660 minicomputers in various cities are configured with 4 146 gb sas 10 k 2.5 inch hard disks. When the operating system is installed, two disks are automatically made into RAID 1, the principle is to prioritize hard disks with a large slot number (from left to right, such as 1, 2, 3, 4, 5, 6, 7, and 8 ).
Check whether the host's built-in hard drive has been made into RAID 1:
From the above output information,
Someone in the Forum asked if the SQL Server account can be case-sensitive. In fact, it is okay, but there are prerequisites.
Many people think that only passwords of SQL Server are case-sensitive, while SQL login accounts are case-insensitive. The default SQL Server login account is case insensitive, but if you installIf the server sorting rule is case-sensitive, the login account of SQL Server will also be case-sensitive (for SA accounts, you can create SA, SA, and SA ).
For example, my
http://blog.csdn.net/killmice/article/details/42745937
The test tool FIO is read sequentially as an example, with the following commands: fio-name IOPS-RW = Read-bs = 4k-runtime = 60-iodepth 32-filename/dev/sda6-ioengin E Libaio-direct = 1 where rw = read for random reads, BS = 4k for each read 4k, filename specifies the corresponding partition, here I am/dev/sda6, direct = 1 means the cache through Linux Test SATA Hard Drive, SAS hard drive, SSD har
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