Fast import SQL records to the Excel table, 19 sub-section 50 thousand records only 30 seconds http://expert.csdn.net/Expert/topic/1035/1035148.xml? Temp =. 9380762.
I can see a program on the Internet. I didn't use VBA programming to import SQL data into an Excel table. It is very fast.
The main idea is to use Excel as a database. Its name is the database name, And the worksheet is a table in the database.Create a project, reference Dao, add command1
[From: http://technet.microsoft.com/zh-cn/library/microsoft.office.tools.excel.worksheet.get_range (de-de). aspx] Worksheet
. Get_range Method
Microsoft.Office.Interop.Excel.Range 对象,该对象表示一个单元格或一定单元格范围。">GetsMicrosoft. Office. InterOP. Excel.RangeObject that represents a cell or a range of cells. Range 属性而不要使用此方法。">UseRangeProperty instead of this method.
Namespace:Microsoft. Office. Tools. ExcelAssembly:Microsoft. Office. Tools. Excel(In Microso
Sub Rollup multiple workbooks ()application.screenupdating = FalseDim WB as Workbook, F as String, l as String, n as String, m as String, J as IntegerF = thisworkbook.path "\"L = f "*.xls"m = Dir (L)Do and M If m n = f MWorkbooks.Open (N)With Thisworkbook.activesheet. Range ("B4:at34"). ClearContentsFor i = 4 to. Range ("A1"). CurrentRegion.Rows.CountFor j = 2 to. Range ("A1"). Currentregion.columns.count-2 Step 3For each WB in WorkbooksIf WB. Name AA = Left (wb. Name, InStrRev (WB. Name, "."
If you have a fairly large number of worksheets in your workbook, how do you quickly select a worksheet after you open the workbook?
For example, in the following workbook, there are 11 worksheets, and the table names use numbers.
In other words, if you have dozens of or even more than 100 worksheets, how can you quickly select the form you want to open from among the many table names?
The method is as follows, there are two methods.
I. Gen
Not long ago, a netizen asked to find out the duplicate data in the Excel worksheet and list it in the cell. I gave an array formula for reference, but not too well, because the array formula finds duplicate data, but if the array formula is copied down beyond the number of duplicate data, an error is displayed in the corresponding cell. Soon, the friend got a better formula. This formula is very good, solves this kind of problem very well, for intere
can also drag the right boundary until the column reaches the desired size.
In most cases, whether you enter numbers in a worksheet or import numbers from a database or other external source, the numbers are displayed the way you want them to be. However, Excel occasionally applies the wrong number format, so you may need to make some adjustments. For example, if you type a number that contains a slash mark (/) or hyphen (-), Excel might interpret i
The algorithm of factorial is more than two aspects: first, high precision computation and the second is related to number theory.
First, the high precision calculation factorial
This is actually the least technical content of the problem, but will often use, so still have to write, optimize its calculations.
First look at the factorial calculation less than o
I. Regional Set-up method
This is the most appropriate way to print a fixed area each time.
Start Excel2003 (please follow the other version), open the appropriate workbook file, select the area you want to print, and perform the "file → print area → set print area" command. Later, when you need to print the area, just click the Print button on the Standard toolbar.
[Friendly reminder] At this point, if you need to print the contents of the entire workshe
Usually when you use an Excel worksheet, we import some files into an Excel table, but many of the text files are irregular, poorly arranged, and when imported into an Excel table, it looks like chaos, so what are we going to do?
Operation Steps
1, open the Excel2010, click the Data tab, and then in the leftmost "Get External Data" menu, select the "From Text" option.
2. In the Import Text File window, select the file you want to import
the "OK" button to see the dialog box shown in Figure 14-6. In this dialog box you can see the document's revision information, such as time, content, and user. There are also five buttons: Accept, Reject, accept all, reject all, and close.
In the dialog box, we can press the appropriate button as needed. For example, press the Accept button and the system automatically moves to the next modified cell. Select Accept all to confirm all changes. Press the Deny button and the system will fi
623-500!
Time limit:3.000 seconds
Http://uva.onlinejudge.org/index.php?option=com_onlinejudgeItemid=8category=24page=show_problem problem=564
In this days you can and more often happen to programs which perform some useful calculations being executed rats Her then trivial screen savers. Some of them check the system message queue and with finding it empty (for examples somebody is editing a file and S Tays idle for some time) to execute its own algorithm.
As an examples we can give programs
Crossing, everyone, from today onwards, we talk about the large-scale couplet science fiction: C Chestnut, that is, C language examples. Gossip Hugh,Words return to the positive turn. Let's talk about C language examples together!Crossing, the last time we were talking about the example of a leap year, this time we say the example is: Seek factorial.Crossing, factorial is an operation in mathematics that usually uses an exclamation point to represent
There are several types of factorial problems:
1. Calculate the number of 0 at the end of the factorial, divide it by 5, and accumulate.
2. How many digits are there in the result of factorial? stirling formula: n! ≈ Sqrt (2 * PI * n) * (n/e) ^ n, takes the base-10 logarithm directly, and the integer part is the number of digits. 3. Calculate the last non-zero bi
When you use Excel to create a worksheet, you will inevitably encounter situations where you need to insert (or delete) cell data, and then learn how to insert and delete cells.
⑴ Insert Cells
Move the cursor to the cell near where you want to insert the cell. Click the Start tab, click the Insert button in the cells area, and select Insert Cell. Select the moving direction of the current cell in the pop-up window, such as Move cell down, click OK t
Factorial: Also a term in mathematics; factorial means multiplying from 1 times 2 times 3 times 4 to the required number; When expressing factorial, use "! "To express. such as h factorial, is expressed as h!; factorial is generally difficult to calculate, because the produc
Factorial (factorial) is a very interesting function, but many people are afraid of it, let's take a look at two factorial-related problems:
1,
given an integer n, then n's factorial n! How many 0 at the end? For example: n=10,n! =3 628 800,n! Has two 0 at the end.
2
, please n! The position of the lowest bit 1 in the
There are several types of factorial problems:
1. Calculate the number of 0 at the end of the factorial, divide it by 5, and accumulate.
2. How many digits are there in the result of factorial? STIRLING formula: n! ≈ SQRT (2 * pI * n) * (N/E) ^ N, takes the base-10 logarithm directly, and the integer part is the number of digits. Http://poj.org 1,423rd
3. Calcula
Recently a pile of questions to fill, has been salted fish, fill a pile of water problems are not necessary to write a problem. Forget about this formula.The meaning of the Stirling formula is that when n is large enough, n! is very difficult to calculate, although there are many equations about n!, but it is not very good to estimate factorial results, especially after N is large, the error will be very large. However, the Stirling formula can be use
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