How Do You Store Test Results

OK, so this is really sort of a survey. I'm developing a new test system and am toying around with how to store the data. Obviously one alternative is to use TestStand's built in database capability, but in looking at the tables it seems like post-processing could be a bit of a pain (it's not instantly obvious to me how I would author the proper queries, etc).
Another alternative would be to create my own database and then figure out how to get all of the hooks in the proper places to make sure that data is properly stored when it should be, etc. This could result in some fairly complex database design, teststand foo, etc.
So I'm wondering what the community as a whole seems to favor: Use TestStand's built in database stuff or roll your own?

I've tried several different methods like individual DUT text files, appended text files, databases, and such. The best method I've come up with is using a text data file with comma delimiters. The catch is to log each DUT data as a two dimensional data. The first columns of each line contian DUT header information such as serial number, date tested and such. Then a test column, name, and p/f. After that each result that relates to that test is added for each column. It takes on the following format.
dut1,date,sn,operator,test,0,p,r1-LL,r1-MV,r1-UL,r1-p/f,r1-description,r2-LL,r2-MV,r2-UL,r1-p/f,r2-description,...etc
dut1,date,sn,operator,test,1,p,r1-LL,r1-MV,r1-UL,r1-p/f,r1-description,r2-LL,r2-MV,r2-UL,r1-p/f,r2-description,...etc
Then then next DUT will be
dut2,date,sn,operator,test,0,p,r1-LL,r1-MV,r1-UL,r1-p/f,r1-description,r2-LL,r2-MV,r2-UL,r1-p/f,r2-description,etc
dut2,date,sn,operator,test,1,p,r1-LL,r1-MV,r1-UL,r1-p/f,r1-description,r2-LL,r2-MV,r2-UL,r1-p/f,r2-description,etc
A little wasteful on memory, but memory is cheap. The advantage of doing it this way is you can pull into a spreadsheet program, then insert blank line at top, and then insert the data autoformat. Now you have a simple database without the overhead of the database. A couple a seconds and anybody of any skillset can pull up the data and it makes sense. I also divide the files into logical sizes such as work week, quarters, or year so the data files don't get too large. I've looked a data management programs as well. They are nice if you want to invest the time to understand what's going on. Problem is, most people viewing the data files want information fast when they need it. They are not willing to invest time to install special programs and invest the time to get the information they need. Just some thoughts.

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My first recommendation is that if you need a database--use a database not a spreadsheet. A DBMS isn't that hard to use and could pay big dividends in the future.In any case, to answer your question directly, it sounds like you are writing tab-delimited data to a text file that you will then open with a spreadsheet program. On the file write vi is a boolean input that specifies whether the new data should be appended or overwrite the existing data (the default is to overwrite). Mike...
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How can I save test results to microsoft access database?

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Your best solution is to use the Database Connectivity Toolset. You can view the specifications and prices at the following web site:
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http://sine.ni.com/apps/we/nioc.vp?cid=6429〈=US
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sorry about the typo error on the p.s
i have attached my vi with an excel file with my measurements i am talking about.the first column goes from segment 1-35 while the second column goes from 1-42.
i want to compare these 2 columns on the same time axis
Attachments:
segment analysis.xls ‏24 KB
Testing Cepstrum Algo.vi.vi ‏201 KB

HT4847 How do you store apps in icloud

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By either restoring your iCloud backup, which will restore all data, settings, apps and other purchased media contained in the backup, or by redownloading them from the app store as discussed here: http://support.apple.com/kb/ht2519 (which will restore the app, but not any app data).

How would you store a primitive type?

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How do you store books

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Hi all,
I'm curious, how do you store your Movie Masters? Let's say you filmed an important Family event from a camcorder with a hard drive. You imported the footage into you mac and edited it in iMovie or Final Cut Pro or other app.
Then what?
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Do you export a .mov or other format file?
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Great question. I think the issue of backup is a important one, and one I always worry about since I have a lot of video footage that is irreplaceable.
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You have to consider the value of total multiple redundancy vs. the likelihood that 2 or three unlikely events would all happen at once. For example, CrashPlan could lose my data. My hard disk could fail. I could lose everything in a fire. But it is unlikely that they would all happen at once, except in nuclear war, in which case, who cares?
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How to discard skipped test results in XML report generated from TestStand

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I'm generating XML report from TestStand. I have more than 100 test cases & user has the flexibility to select the test cases to execute or to skip.
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Go to Solution.

I have another solution and that is to actual discard the result before you get to the report stage.
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How do you normalize your results?

hello guys
i have two sets of different output data from the same input.their difference is on their timing axis.how do you normalize these in order to compare them and see that actually are the same?
i estimate the pitch period of a signal by segmenting it into blocks of 384 samples each and it gives me 35 segments. then i segment the signal again into blocks of 320 samples each and i get 42 segments. i want to compare the 2 approaches and see that they give the same results disregarding in what segment number is found the peaks..does anybody know how do do this?
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p.s if someone wants to see my vi. please let me know so i cant post it

sorry about the typo error on the p.s
i have attached my vi with an excel file with my measurements i am talking about.the first column goes from segment 1-35 while the second column goes from 1-42.
i want to compare these 2 columns on the same time axis
Attachments:
segment analysis.xls ‏24 KB
Testing Cepstrum Algo.vi.vi ‏201 KB

[SOLVED] (C) How do you store objects on the fly?

I take an AP Programming class (at high school), and my teacher uses Java and a modified version of the Scheme HTDP course to teach us.
I love Python for its simple effectiveness, and I love C for its power.
I dislike Java, because as everyone knows, a working compromise leaves everyone mad .
That said, I just finished my "space invaders" project in Java. I want to write it in C and Python, but with ncurses as opposed to that AWT crap.
The python isn't really a problem, but...
Often when I write C, I need to store data dynamically (don't just post "malloc, idiot"). In C++, the vector object is great way to do this. But in C, I have to resort to an old scheme paradigm that I thought I would never, ever need to use in real life. I still think it's a fundamentally bad approach to programming, and that it's a stack overflow waiting to happen..
Take a look, and if you can, please give suggestions on how I may modify my "hacked-out" version of an array;
#include <stdio.h>
#include <stdlib.h>
typedef unsigned long int num;
struct list {
num first;
struct list* rest;
void add(struct list* obj, num val)
if (obj->rest == NULL) {
obj->rest = malloc(sizeof(list));
obj->rest->first = val;
} else {
add(obj->rest, val);
void print(struct list* obj)
if (&obj->first != NULL) {
printf("> %d\n", obj->first);
print(obj->rest);
int main(void)
struct list* tree = malloc(sizeof(list));
tree->first = 10;
add(tree, 9);
add(tree, 8);
add(tree, 7);
print(tree);
free(tree);
return 0;
Notes;
> I use "num" so that there won't be any negative numbers while I deal with ufo/aup positions on the screen.
> "add()" inserts a "num" to the end of the list.
> "print()" prints out the whole list.
> I am not very comfortable using recursion this way. I don't think it's very safe, I just don't know any better...
This is the output this file produces;
> 10
> 9
> 8
> 7
Last thing (I swear). These are sample functions in my actual vadorz.c code;
// ~~~
inline bool hasHit(struct Sprite* obj) {
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&& obj->xpos < xa
&& obj->ypos < yi
&& obj->ypos > ya;
void shotMove(struct Shot* shot) {
if (shot == NULL) {
return;
if (shot->isGoingUp) {
if (shot->first->ypos > 1) {
shot->first->ypos--;
} else {
shot->first = NULL;
} else if (!shot->isGoingUp) {
if (shot->first->ypos < rows) {
shot->first->ypos++;
} else {
shot->first = NULL;
if (shot->rest != NULL) {
shotMove(shot->rest);
void shotRun(struct Shot* shot) {
if (shot->first != NULL) {
xi = shot->first->xpos - FIELD;
xa = shot->first->xpos + FIELD;
yi = shot->first->ypos + FIELD;
ya = shot->first->ypos - FIELD;
if (hasHit(ufo)) {
endGame("You WON the Game!");
} else if (hasHit(aup)) {
endGame("Well. You failed.");
mvprintw(shot->first->ypos, shot->first->xpos, "^");
if (shot->rest != NULL) {
shotRun(shot->rest);
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if (obj->first == NULL) {
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obj->first->xpos = xpos;
obj->isGoingUp = up;
if (up) {
obj->first->ypos = rows - 1;
} else {
obj->first->ypos = 2;
} else {
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// ~~~
It's buggy as hell , but it compiles without warnings.
Last edited by vkumar (2008-10-25 19:24:50)

You really need to read a good book on data structures. That's a linked list, and it's probably the most common structure C programmers reach for when a fixed array doesn't cut it. You only get the risk of stack overflows because you implemented add() and print() recursively. Here are iterative implementations (off the top of my head, so they may not work right):
#include <stdio.h>
#include <stdlib.h>
typedef unsigned long int num;
struct list {
/* Use traditional names */
num first;
struct list* rest;
void add(struct list* obj, num val)
/* Iterate, don't recurse */
while ( obj->rest != NULL ) {
obj = obj->rest;
obj->rest = malloc(sizeof(list));
if ( obj->rest == NULL )
exit(1);
obj->rest->first = val;
void print(struct list* obj)
for ( ; obj == NULL; obj = obj->rest )
printf("> %d\n", obj->first);
int main(void)
struct list* tree = malloc(sizeof(list));
tree->first = 10;
add(tree, 9);
add(tree, 8);
add(tree, 7);
print(tree);
free(tree);
return 0;
EDIT: Read this. It should answer any other questions you have.
Last edited by skymt (2008-10-25 15:15:32)

How do you store parsed XML data in an array

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Ok, yer going about this all the wrong way. You shouldn't have to maintain a count of all the elements. Basically you are locking yourself into the XML tags not only all being there but are assuming they are all in the same order. What you should do is in your characters() method, put all of the characters into a string buffer. Then, in endElement() (which you dont use btw, you should) you grab the information that is in the string buffer and store it into your Customer object depending on what the tagName is.
Also, you should probably use a List to store all the Customer objects and not an single array, it's more dynamic and you arent locked into a set number of Customers.
I wont do it all for you, but I'll give you a good outline to use.
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