ppi in teradata

The DPI is the abbreviation for dots per inch, which is the ability to retrieve or display data in each inch of the image capture tool or display tool per unit length (inches). Therefore, the more points, the more detailed output patterns, generally speaking, most of the screen using 72dpi resolution, printing output must be 300dpi or higher. In addition, PPI is the abbreviation for pixel per inch, mainly for optical resolution, because pixels (pixel

Step 1: First open teradata fastload.exe Step 2: paste the import script Script: Sessions 4; errlimit 25; set record vartext ","; logon localhost/teradata_education, educate;/* localhost: IP address; teradata_education: User Name; educate: password */drop table pt_temp_p.rfm_label; drop table partition; Create Multiset table pt_temp_p.rfm_label (r varchar (20), f varchar (20), m varchar (20 ), CNT varchar (20), lab varchar (20); record 2;

Today, try to connect Teradata directly with JDBC, and quote the following error: Gssexception:failure unspecified at GSS-API level (mechanism level:userfile parameter null) at COM.TERADATA.TDGSS . Jtdgss. Tdgssparsexml. After a while, I found that the original Teradata need 3 packages, and I only gave 1 packages. Terajdbc4.jar Tdgssjava.jar Tdgssconfig.jar To tell you the truth, I think Tera

Tags: here results chinese tail classic Exce net Tcl fromTopic Source: 63681089 Teradata Implementations: drop table student; CREATE TABLE student (s_id varchar), sname varchar, sage date, sex varchar (20)); INSERT into Student values (' 01 ', ' Lei ', ' 1990-01-01 ', ' Male '); INSERT into Student values (' 02 ', ' Money electricity ', ' 1990-12-21 ', ' Male '); INSERT into Student values (' 03 ', ' Sun Wind ', ' 1990-05-20 ', ' Male '); INSERT into

A basic principle for massive data performance optimization is "Partitioning" (also called "Partitioning ). The idea of partitioning is actually the principle of drawer in daily work and life: we put our items into multiple small draws according to some logic. A basic principle for massive data performance optimization is "Partitioning" (also called "Partitioning ). The idea of partitioning is actually the principle of drawer in daily work and life: we put our items into multiple small draws ac

Oracle, mysql, teradata paging method/*** add paging information to the original SQL statement * @ param SQL the SQL statement to add paging * @ param start the start position of the record * @ param limit the record to be displayed number * @ return: converted SQL */public static String addPageForOracle (String SQL, int start, int limit) {int end = start + limit; SQL = "select * from (select t. *, rownum rn from ("+ SQL +") t where rownum

+ insert19. When two tables are joined, the field names of the association conditions should be as consistent as possible, and the columns located on the PI should be used whenever possible.20. When creating a table, if you can determine the width of a string field, try to use char instead of varchar.21. When querying or joining multiple tables, try to exclude or filter the null field first, or process the null field in the original table before querying or joining.22. In

=Employee_p; modifyUserEmp03AsProfile=Null; 6. Priority of USER Parameters (1) Specify the database or account ID at the session level (2) User parameters specified in profile (3) User parameters specified by the create user or modify user statement 7. Create a complete profile instance Create Profile employee_p As Account = ( ' $ M0_educ S D H ' , ' $ L0_educ S D H ' ) Default Database = Hr_vm Spool = 1e9 Temporary = 500e6 Password = (Expire = 90 , Minchar =

Recently learned SQL in Teradata environment. Here to record the study of the knowledge points, as a record.Directory: About SQL learning and the online database used Table Union (join) SQL Sub-query Create a new field at select (as, Case time) Data Grouping (group BY + aggregate function count, SUM, AVG, etc.) Use over (partition by) to group data and create new fields Sample Selection 1. About SQL learning and t

thought to never change FOREIGN keyThe relationship between the foreign key indicators tableFOREIGN KEY rules: Foreign keys are optional A table may have more than one foreign key A foreign key may consist of more than one column Foreign keys allow duplicate values to occur Foreign keys allow null values The value of the foreign key may change The value of each foreign key must exist in a primary key These terms are not unique to

Requirement: Splits a string that uses a delimiter connection for a fixed number of digits, such as splitting a record 215|482|850|870 into 215,482,850,870 four recordsResult: The WITH RECURSIVE statement is capable of implementing this function and

different. When manipulating bitmaps, the most accurate and reasonable pixel units, how to draw a 20-pixel size when using the GD2 library? So how many pounds can be equal to 20 pixels? This must be calculated by resolution, and the problem is that the bitmap itself does not have the concept of resolution. Now return the question, if given $size=20 lbs, then how many pixels will be occupied by Imagettftext () when the drawing is completed. In any case, Imagettftext () will eventually have

different. when manipulating bitmaps, the most accurate and reasonable pixel units, how to draw a 20-pixel size when using the GD2 library? So how many pounds can be equal to 20 pixels? This must be calculated by resolution, and the problem is that the bitmap itself does not have the concept of resolution. now return the question, if given $size=20 lbs, then how many pixels will be occupied by Imagettftext () when the drawing is completed. In any case, Imagettftext () will eventually have to tr

One-time modification of the closed source Entity Provider assembly to be compatible with the new EntityFramework process, assembly After reading this article, you will know how to directly modify a DLL without the source code to remove the strong naming restrictions on the DLL, add your "friend assembly" directly on the Assembly (a special Attribute that is applied to the Assembly so that the internal type in the Assembly can be directly called by other assembly) ". Similarly, you can use this

If you're a front-end engineer working on mobile Web development, you may also have had problems that I've encountered: There are too many new concepts to master, too many similar concepts to differentiate. It doesn't matter, I will use two articles to solve these problems. The previous article on explaining and distinguishing some of the introductory level concepts. These concepts you may have seen or heard on various occasions, as if they were ripe, but do you really understand the meaning beh

Android picture adaptation is a tricky thing, this article detailed introduction screen display principle, why the resource file will existDRAWABLE-LDPI, drawable-mdpi, drawable-hdpi, drawable-xhdpi and other folders, why use DP as a unit and so on.Let's start with the display of these two pictures. This is a picture of 200x200 on a different phone display effect. Is it obvious that the second picture looks much smaller than the first one? What is this for?Here we introduce the

*psic_imask =0x00004000;//Enable UART to interrupt*puart_thr=txbuf[i];//write data to UART transmit data register while(! (*puart_lsr0x0020));//wait for transmission to completeEx_interrupt_handler (UART_ISR)//uart receive data interrupt function{if(*PUART_LSRAMP;DR)//To determine if there are new data. {if(Cont> +)//Prevent buff overflow, test code, repeat the received data to the 512-byte buffCont=0; rxbuf[Cont]=*PUART_RBR;//Read DataCont++;} }The code implements a configuration baud rate of 9

We're doing Android mobile app design. , the choice of font size is also very frustrating, today, a collation of a Android System font specifications, mainly from the following aspects: the program. 1. Basic concepts related to font size in mobile design Px:pixels is the basic encoding of pixels, basic pigments and their grayscale. Dpi:dots per inch is a printed volume unit that means the number of outlets that can be printed on each inch. Ppi:pixels per inch The resolution of a di

. PPI =√ (length pixels ²+ width pixels ²)/Screen diagonal inches Pt:point, pound because of the international Printing Unit, is a natural standard length unit. inch = 2.54cm = 25.4 mm = 72pt, 1pt≈0.35mmThe font units in Photoshop are different in PT and point. In Photoshop, the same 10pt word, as long as you change the font, the height of the word changes. Dp:density-independent pixels, with 160PPI screen as standard, th

category). So after android3.2, this classification is not used, the new classification method is defined by the available screen width, in the project resource file (such as layout) use, here are some examples: LAYOUT-SW600DPLAYOUT-SW720DPVALUES-SW340DP the definition of these classifications will be explained in detail later, now we have a concept.Screen densitiesThere are several concepts to understand before you speak screen densities: px,ppi,dpi