printable columns and rows

> M0 Initializes a matrix containing 4 rows with no padding for the cells > M0 View the M0 [1,][2,][3,][4,] > Rownames (M0)Null Query row name > M2 Initial data frame, each column is filled with different rules > M2 View m2 [,

Displays data with different columns, the adapter must correspond to its display control, and the adapter needs to be redefined. Control is as follows Import java.util.LinkedList; Import Java.util.Queue; Import Android.annotation.SuppressLint; Import Android.content.Context; Import Android.database.DataSetObserver; Import Android.graphics.Rect; Import Android.util.AttributeSet; Import Android.view.GestureDetector; Import android.view.MotionEvent; Impo

Control | data | display Many times, when we display the contents of a database, we use a few rows or columns to display the data, such as 10 data, to be displayed in 2 or 3 columns per row. Here is a simple listing code that uses an array to display a few rows of columns in

When we perform a database query to return a resultset, in many cases we need to know the size of the resultset, which is the number of rows and columns. We know that the number of columns can be easily obtained by Resultset.getmetadata (). getColumnCount (), however, the Java API does not provide an interface to directly access the number of resultSet

Objective Report output is often involved in Java application development, while general reports often lack generality, which makes it inconvenient for users to personalize editing. Because of its cross-platform features, Java programs cannot manipulate Excel directly. Therefore, this article explores the POI line of Sight Java program for the number of columns and rows in Excel reading. Methods are as fo

Test table:CREATE TABLE' Test ' (' ID ')int( One) not NULLauto_increment, ' name 'varchar(255) not NULL,`Order' varchar (255)DEFAULT NULL,PRIMARY KEY(' id ')) ENGINE=InnoDB auto_increment=4 DEFAULTCHARSET=UTF8;Insert test data:INSERT into' Bbkb_busticket '. ' Test ' (' id ', ' name ', 'Order`)VALUES('1','Zhang San','0');INSERT into' Bbkb_busticket '. ' Test ' (' id ', ' name ', 'Order`)VALUES('2','John Doe','1');INSERT into' Bbkb_busticket '. ' Test ' (' id ', ' name ', 'Order`)VALUES('3','Ki

column or row expansion and scaling methods in Excel: Expand and zoom methods for columns and rows in Excel 　　Method One: 1. Select the row or column that you want to scale, click "Data"----"Create Group" 2. Click "" to zoom in the Excel table column or row 3. Click "" to expand the columns or rows in the Ex

Here's how Excel tables translate a column of data into multiple rows and columns of data. No complex formula input is required, just a simple mouse operation can be done. 1. Converts a column of 60 data to 5 rows and 12 columns. First, in the B1 to enter "A1", B2 input "A13", and then select B1, B2, move the mouse t

The general approach: 1. Drag to select all column areas with hidden columns, right-click menu-Unhide 2. Drag to select all row areas with hidden rows, right-click menu-Unhide The quickest way: Click the Select All button in the upper left corner, press CTRL + Shift not loose, press 9 and then press the 0 key Evaluation: The 1th method, if the table area is large, drag selection is time-

Strictly speaking, the length and dimensions of a matrix are fixed, so you cannot add or delete rows or columns. However, the matrix can be re-assigned so that the same effect can be obtained and added or deleted. The function Rbind () (representing row bind, combination by row) and function Cbind () (representing column bind, combined by column) can add rows or

Java Connection database and simple operation see my previous essay:http://www.cnblogs.com/meitian/p/5036332.html first, the number of rows and columns to get the results of the queryquery result is ResultSet objectthis. executequery (sql_temp);To view the number of columns:int column_count=selectresult.getmetadata (). getColumnCount ();GetMetaData () returns all column informationGetMetaData (). getColumnN

', ' 192.168.0.67 '; Sa '; ' Password ', ' SELECT * from BCM2.dbo.tbAppl ') TRUNCATE table [table Name] The following is a description of the usage and principle of the TRUNCATE statement in MSSQLServer2000: Truncate is a statement in SQL that deletes the contents of a datasheet, using the following: Truncate table name is faster and more efficient because: TRUNCATE table is functionally the same as a DELETE statement without a WHERE clause: Both delete all

For Excel table rows and columns of various coloring methods, the online introduction is very detailed, the author also benefited from. The above methods are related to functions, and are very convenient to use. , the Excel function is very rich, and powerful, is a major feature of it. But in the practical application, the average user's mastery of the function is limited to a few commonly used functions, a

Label:For mysql/hive to be counted, you can use a function if you want rows to become columns.Case field A When value B then C [if D then e]* [ELSE F] ENDWhen the field a= value B, return C (if the field is the value of the field, it can be a fixed value plus single quotation marks), when A=d, return E, otherwise return F.Such as:Data table structure: (for example, ID has duplicates)Select ID , sum (case action when ' article ' and count else 0 end) a

#include 　　The use of C two-dimensional character array and how to get the total number of rows and columns of the two-dimensional array!

The example in this article tells you how PHP lists all the rows and columns in the MySQL table. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: $user = "root"; $pass = ""; $db = "MyDatabase"; $link = mysql_connect ("localhost", $user, $pass); if (! $link) { Die ("couldn ' t connect to MySQL:". Mysql_error ()); }mysql_select_db ($d

', [English] as ' English 'From(SELECT * FROM ABC) as sourcePivot(SUM (grade)For class in([Mathematics],[Chinese],[English])) as PHowever, for a program that does not know the specific column name is not very good solution, generate dynamic SQL session (call sp_executesql), arm such as:DECLARE @sql varchar (8000)Set @sql = ' Select student, 'Select @sql = @sql + ' sum (case class "+class+" then grade else 0 end) as ' +class+ ', 'From (SELECT DISTINCT class from ABC) as aSelect @sql = Left (@sql