text-files

问题 I was wondering how to go about exporting a query from PL/SQL to an text file or csv file. The query I have in mind exports a huge amount of data (about 1 gig). So I'd also like the data split across multiple files; out1.csv out2.csv out3.csv I'd like to be able to decide how many files to split it across. Anyone have any idea how to do this? 回答1: Use UTL_FILE. A well known ( probably the most complete discussion on this topic ) discussion on this can be found at Ask Tom, Here , note that

问题 I am new to C programming. Right now I'm writing a program in C which reads .txt files and stores the data into another txt file. For example: open 20150101.txt then get the data inside 2015010103I 2015010102O then store it in 2015JAN.txt Currently I'm having problems in sorting the contents of the .txt file. Could you help me? int intCtr; int intCtr2; int intCtr3; char strTempData[MAX_SIZE]; FILE * ptrFileLog; ptrFileLog = fopen(strFileName, "r"); while(fgets(strTRLog, MAX_SIZE, ptrFileLog)

问题 This question already has answers here : Comparing text files with Junit (9 answers) Closed 6 years ago . I want to implement JUnit on a small project I'm working on because I want to learn a little bit about it. The tutorials that I read all make reference to methods that have a particular output. In my case my output are files, how can I do this? any simple example? any approach that could help me with this? The files are raw text files that are build by a void private method. 回答1: You want

问题 When I'm reading a line in a text file, like this one below : présenté alloué ééé ààà tué And try to print it in the terminal, it displays correctly. But when I apply a split with a space as separator, it displays this : ['pr\xc3\xa9sent\xc3\xa9', 'allou\xc3\xa9', '\xc3\xa9\xc3\xa9\xc3\xa9', '\xc3\xa0\xc3\xa0\xc3\xa0', 'tu\xc3\xa9\n'] I just use this to read the text file : f = open("test.txt") l = f.readline() f.close() print l.split(" ") Can someone help me ? 回答1: Printing the list is not

问题 I am trying to extract one text file from each of the zip files located in one folder. Then I want to combine those text files into one dataframe. The folder has multiple Zip files: pf_0915.zip pf_0914.zip pf_0913.zip ..... Inside of those zip files are multiple text files. I am only interested in the one called abc.txt. This is a fixed width format file without header. I have already set up a read for this file using read_fwd. Since all the extracted text files have the same name, it might

问题 I am not the best programmer with c++ but I am trying to learn. I am trying to take user input and write it into a text file (without overwriting the old one) but I can't figure out where to plugin the variable (int). Here is my code so far... int main() { int i; cout << "Please enter something: "; cin >> i; FILE * pFile; pFile = fopen ("C:\\users\\grant\\desktop\\test.txt","a"); if (pFile!=NULL) fputs ("C++ Rocks!",pFile); fclose (pFile); getch(); return 0; } Also, if there is a more

问题 I am trying to write some strings to a text file on the formclosing event. The problem is that the streamwriter doesn't write anything, it just writes a blank slate. I have 2 different text files, the first one will log all of the graph data and the second text file will log a couple of preferences relevant to my application. My code is shown below for both the closing event and a seperate workhorse method: private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (e

问题 For instance, if I have a text file (mytext.txt) with the following text: Table1 13 3 20 0 0 0 0 3 10 0 0 0 6 0 20 0 5 0 0 0 0 0 0 0 7 20 0 0 0 0 0 20 19 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 13 Table2 0 2 10 -5 3 -10 -5 Can I retrieve both of them and get two tables? So that if I print my data table1 I would get the first table and if I print my data table 2 I would get the second table. I know that if mytext.txt only had one table I could do something like: table1 <- read.table("mytext.txt") 回答1: 1

问题 I have four text files as shown in attached image. generalized Script which I'm using to join and consolidate them is: @echo off setlocal enableDelayedExpansion :: Clear any existing $ variables for /f "delims==" %%A in ('"set $ 2>nul"') do set "%%A=" :: Load data set "cnt=0" set "blank= " set "null= NULL" set "width=8" set "labelWidth=22" set "lineWidth=0" set "lookup= FreePhysicalMemory:2 TotalVisibleMemorySize:3 CPULoadPercentage:4" for %%F in (server1.txt server2.txt server3.txt server4

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . I am using a script to back up files from ftp. code is below. include "recurseZip.php"; //Source file or directory to be compressed. $src='source/images/black.png'; //Destination folder where we create Zip file. $dst='backup'; $z=new recurseZip(); echo $z->compress($src,$dst); Now I want to get