I need an query in orientDB which will do the shift operation in data,
for Example :- i have length of 10 character data
PR00000010
so I need to do the shift operation.In that PR is fixed.I need to reduce the zero, as number goes on
increase.
for example:-
PR00000100, PR00001000 , PR 00010000 PR 00100000
the number might be random.
For eg:- PR000000500, PR0000000070
i need an query for this in Orient-db..
OR functions for this sequence to generate continuously.
With this sample structure:
You can use this JavaScript function:
var g = orient.getGraph();
var pr = g.command("sql","select from v");
for(i=0;i<pr.length;i++){
var v=pr[i];
var get_pr = v.getProperty("pr");
get_pr=get_pr.substring(2,get_pr.length);
for(h=0;h<8;h++){
var pr_chars = get_pr.charAt(h);
if(h==0 && pr_chars!=0){
get_pr = "PR00000000";
v.setProperty("pr",get_pr);
g.commit();
break;
}
if(pr_chars!='0'){
get_pr = get_pr.replace("0"+pr_chars,pr_chars+"0");
v.setProperty("pr","PR"+get_pr);
g.commit();
break;
}
}
}
Hope it helps.
Related
Trying to split one row into many based on string in two cells. it is similar to the question
LINQ to separate column value of a row to different rows in .net
but i need to split based on Product & Cost Columns rather than product column only
SNo.
Product
Cost
1
colgate,closeup,pepsodent
50,100,150
2
rin,surf
100
into
SNo.
Product
Cost
1
colgate
50
1
closeup
100
1
pepsodent
150
2
rin
100
2
surf
100
I'm using Linq to Object with Entity Framework
Try the following. Since you have not presented any model it can be inaccurate in names.
var loaded = ctx.Products.ToList();
var query =
from p in loaded
from sp in p.Product.Split(',').Zip(p.Cost.Split(','), (p, c) => (p, c))
select new
{
Sno = p.Sno,
Product = sp.p,
Cost = sp.c
};
var splitted = query.ToList();
Using #SvyatoslavDanyliv naming, here is an answer:
var loaded = ctx.Products.ToList();
var query =
from p in loaded
from sp in p.Product.Split(',').Zip(p.Cost.Split(','), (p, c) => (p, c))
select new
{
Sno = p.Sno,
Product = sp.p,
Cost = sp.c
};
var splitted = query.ToList();
It feels a bit complicated to me. I would prefer using an extension method to create a variant of Zip that repeats the last element of a shorter sequence to match the longer sequence:
public static class EnumerableExt {
public static IEnumerable<(T1 First,T2 Second)> ZipExtend<T1,T2>(this IEnumerable<T1> s1, IEnumerable<T2> s2) {
var s1e = s1.GetEnumerator();
var s2e = s2.GetEnumerator();
T1 s1eLast = default;
T2 s2eLast = default;
bool has_s2 = false;
if (s1e.MoveNext()) {
do {
s1eLast = s1e.Current;
if (s2e.MoveNext()) {
s2eLast = s2e.Current;
has_s2 = true;
}
else if (!has_s2)
yield break;
yield return (s1eLast, s2eLast);
} while (s1e.MoveNext());
if (has_s2)
while (s2e.MoveNext())
yield return (s1eLast, s2e.Current);
}
yield break;
}
}
Then the answer is:
var query =
from p in loaded
from pr in p.Product.Split(',').ZipExtend(p.Cost.Split(','))
select new
{
Sno = p.Sno,
Product = pr.First,
Cost = pr.Second
};
var splitted = query.ToList();
I want to add some quick filters using the ui of google sheets. Currently I want to allow the user to click "show last month" to only see the data of the last month. The dates are written in the first column.
Now I prefer to use the filter of google sheets before just printing the values into the sheet, to allow the user to further modify that filter.
Thus I am trying to build filterCriteria using SpreadsheetApp.newFilterCriteria().whenDateEqualToAny(dates) and I am parsing an array of valid dates. In the documentation it says I have to put a "Date[]" - doesn't that mean an array of dates?
Below the error message and my code:
Error message (linked to the line "var filterCriteria..."):
"Exception: The boolean condition can not have multiple values for equality checks for non-data source objects"
My code:
function showLastMonth() {
var ss = SpreadsheetApp.getActive()
var sheet = ss.getSheetByName('evaluation')
var now = new Date()
var thisYear = now.getFullYear()
var thisMonth = now.getMonth()
if(thisMonth == 0){var startMonth = 11; var startYear = thisYear - 1}
else{var startMonth = thisMonth - 1; var startYear = thisYear}
var startDate = new Date(startYear, startMonth, 1)
var endDate = new Date(thisYear, thisMonth, 0)
var dates = getDateArray(startDate, endDate)
var filter = sheet.getFilter()
if(filter == null ){
var range = sheet.getDataRange()
var filter = range.createFilter()
}
var filterCriteria = SpreadsheetApp.newFilterCriteria().whenDateEqualToAny(dates)
filter.setColumnFilterCriteria(1, filterCriteria)
}
getDateArray = function(startDate, endDate){
var startYear = startDate.getFullYear()
var startMonth = startDate.getMonth()
var dateArray = []; dateArray.push(startDate)
var date = startDate; var day = date.getDay()-1
while(date<endDate){
day++
date = new Date(startYear, startMonth, day)
if(date<=endDate){dateArray.push(date)}
}
return dateArray;
}
I believe your goal as follows.
You want to hide the rows of the values except for dates using the basic filter.
You want to achieve this using Google Apps Script.
Issue and workaround:
In the current stage, it seems that array of whenDateEqualToAny(array) is required to be the length of 1. I think that this is the reason of your issue. So for example, when var filterCriteria = SpreadsheetApp.newFilterCriteria().whenDateEqualToAny([dates[0]]) is used, no error occurs. This situation is the same with the setBasicFilter request of Sheets API. Unfortunately, it seems that this is the current specification. But, the official document says The acceptable values. which uses the plural form. Ref So I also think that this is not correct for the actual situation as mentioned by TheMaster's comment.
In order to achieve your goal, in this case, I would like to propose the following 2 patterns.
Pattern 1:
In this pattern, using setHiddenValues(), the values except for the values of dates in your script are set as the hidden values.
Modified script:
When your script is modified, please modify as follows.
From:
var filterCriteria = SpreadsheetApp.newFilterCriteria().whenDateEqualToAny(dates)
To:
var obj = dates.reduce((o, e) => Object.assign(o, {[`${e.getFullYear()}\/${e.getMonth() + 1}\/${e.getDate()}`]: true}), {});
var range = sheet.getRange("A1:A");
var dispValues = range.getDisplayValues();
var hiddenValues = range.getValues().reduce((ar, [a], i) => {
if (a instanceof Date && !obj[`${a.getFullYear()}\/${a.getMonth() + 1}\/${a.getDate()}`]) {
ar.push(dispValues[i][0]);
}
return ar;
}, []);
var filterCriteria = SpreadsheetApp.newFilterCriteria().setHiddenValues(hiddenValues).build();
Pattern 2:
In this pattern, using whenNumberBetween(), the values of dates in your script are shown. In this case, it is required to convert the date object to the serial number.
Modified script:
When your script is modified, please modify as follows.
From:
var filterCriteria = SpreadsheetApp.newFilterCriteria().whenDateEqualToAny(dates)
To:
var filterCriteria = SpreadsheetApp.newFilterCriteria().whenNumberBetween(
(dates[0].getTime() / 1000 / 86400) + 25569,
(dates.pop().getTime() / 1000 / 86400) + 25569
).build();
The conversion from the date object to the serial number was referred from this thread.
References:
setHiddenValues(values)
whenNumberBetween(start, end)
I wrote this script that is used as a trigger onEdit in a sheet. The idea is to pick a value from a worksheet, copy it into another worksheet based on some logic, and then delete the source row that contained the original value.
When run, often times, the copy will take place, but on delete, the copied value will disappear. One way I noticed fixes the problem is if I delete the trigger, save, and create it again...
How can I avoid this behavior?
function onEdit(e) {
var range = e.range;
var entry = range.getSheet();
var sss = entry.getParent();
if (sss.getName() != "Weight Tracker")
return;
if (entry.getName() != "Entry")
return;
Logger.log("CopyData is running...."+range.getCell(1,2).getValue());
var weight = range.getCell(1,2).getValue();
Logger.log("weight = "+weight);
var details = sss.getSheetByName('Details');
var trange = details.getRange(3, 1, 200);
var data = trange.getValues();
var today = new Date().setHours(0,0,0,0);
for(var n=0;n<data.length;n++) {
var date = new Date(data[n]).setHours(0,0,0,0);
Logger.log("date = "+date+" =? "+today);
if(date == today) {
break
};
}
Logger.log("n = "+n+" today: "+today);
// n is 0 based, sheet is 1 based + 2 headers = 3, 5 is Jim's weight
details.getRange(n+3,5).setValue(weight);
// get rid of the row so next addition arrives to the top row
Logger.log("deleting row...");
// for some reason deleting the road removes the value entered...
range.getSheet().deleteRow(1);
}
I have similar to the link below problem.
EPPlus chart from list of single excel cells. How?
I tried the code but it shows it twice in the chart. For example:
This code show excel chart -> select data-> horizontal(category) axis labels tab you show 100,100,300,600 write. What is the reason for this? The chart is written twice the first data I did not find a solution to the problem.
I think you just discovered a bug with EPPlus. Shame on me for not noticing that with that post you reference. It seems that when using the Excel union range selector (the cell names separated by commas) the iterator for the ExcelRange class returns a double reference to the first cell, in this case B2.
A work around would be to use the other overload for Series.Add which will take two string ranges. Here is a unit test that show the problem and the workaround:
[TestMethod]
public void Chart_From_Cell_Union_Selector_Bug_Test()
{
var existingFile = new FileInfo(#"c:\temp\Chart_From_Cell_Union_Selector_Bug_Test.xlsx");
if (existingFile.Exists)
existingFile.Delete();
using (var pck = new ExcelPackage(existingFile))
{
var myWorkSheet = pck.Workbook.Worksheets.Add("Content");
var ExcelWorksheet = pck.Workbook.Worksheets.Add("Chart");
//Some data
myWorkSheet.Cells["A1"].Value = "A";
myWorkSheet.Cells["A2"].Value = 100; myWorkSheet.Cells["A3"].Value = 400; myWorkSheet.Cells["A4"].Value = 200; myWorkSheet.Cells["A5"].Value = 300; myWorkSheet.Cells["A6"].Value = 600; myWorkSheet.Cells["A7"].Value = 500;
myWorkSheet.Cells["B1"].Value = "B";
myWorkSheet.Cells["B2"].Value = 300; myWorkSheet.Cells["B3"].Value = 200; myWorkSheet.Cells["B4"].Value = 1000; myWorkSheet.Cells["B5"].Value = 600; myWorkSheet.Cells["B6"].Value = 500; myWorkSheet.Cells["B7"].Value = 200;
//Pie chart shows with EXTRA B2 entry due to problem with ExcelRange Enumerator
ExcelRange values = myWorkSheet.Cells["B2,B4,B6"]; //when the iterator is evaluated it will return the first cell twice: "B2,B2,B4,B6"
ExcelRange xvalues = myWorkSheet.Cells["A2,A4,A6"]; //when the iterator is evaluated it will return the first cell twice: "A2,A2,A4,A6"
var chartBug = ExcelWorksheet.Drawings.AddChart("Chart BAD", eChartType.Pie);
chartBug.Series.Add(values, xvalues);
chartBug.Title.Text = "Using ExcelRange";
//Pie chart shows correctly when using string addresses and avoiding ExcelRange
var chartGood = ExcelWorksheet.Drawings.AddChart("Chart GOOD", eChartType.Pie);
chartGood.SetPosition(10, 0, 0, 0);
chartGood.Series.Add("Content!B2,Content!B4,Content!B6", "Content!A2,Content!A4,Content!A6");
chartGood.Title.Text = "Using String References";
pck.Save();
}
}
Here is the output:
I will post it as an issue on their codeplex page to see if they can get it fixed for the next release.
I have been using CouchDB for quite sometime without any issues. That is up until now. I recently saw something in my map/reduce results which I had overlooked!
This is before performing a sum on the "avgs" variable. I'm basically trying to find the average of all values pertaining to a particular key. Nothing fancy. The result is as expected.
Note the result for timestamp 1308474660000 (4th row in the table):
Now I sum the "avgs" array. Now here is something that is peculiar about the result. The sum for the key with timestamp 1308474660000 is a null!! Why is CouchDB spitting out nulls for a simple sum? I tried with a custom addition function and its the same problem.
Can someone explain to me why is there this issue with my map/reduce result?
CouchDB version: 1.0.1
UPDATE:
After doing a rereduce I get a reduce overflow error!
Error: reduce_overflow_error
Reduce output must shrink more rapidly: Current output: '["001,1,1,1,1,1,11,1,1,1,1,1,1,11,1,1,1,1,1,1,11,1,1,1,1,1,1,11,1,1,1,1,1,101,1,1,1,1,1,1,11,1,1,1,1'... (first 100 of 396 bytes)
This is my modified reduce function:
function (key, values, rereduce) {
if(!rereduce) {
var avgs = [];
for(var i=values.length-1; i>=0 ; i--) {
avgs.push(Number(values[i][0])/Number(values[i][1]));
}
return avgs;
} else {
return sum(values);
};
}
UPDATE 2:
Well now it has gotten worse. Its selectively rereducing. Also, the ones it has rereduced show wrong results. The length of the value in 4th row for timestamp (1308474660000) should be 2 and not 3.
UPDATE 3:
I finally got it to work. I hadn't understood the specifics of rereduce properly. AFAIK, Couchdb itself decides how to/when to rereduce. In this example, whenever the array was long enough to process, Couchdb would send it to rereduce. So I basically had to sum twice. Once in reduce, and again in rereduce.
function (key, values, rereduce) {
if(!rereduce) {
var avgs = [];
for(var i=values.length-1; i>=0 ; i--) {
avgs.push(Number(values[i][0])/Number(values[i][1]));
}
return sum(avgs);
} else {
return sum(values); //If my understanding of rereduce is correct, it only receives only the avgs that are large enough to not be processed by reduce.
}
}
Your for loop in the reduce function is probably not doing what you think it is. For example, it might be throwing an exception that you did not expect.
You are expecting an array of 2-tuples:
// Expectation
values = [ [value1, total1]
, [value2, total2]
, [value3, total3]
];
During a re-reduce, the function will get old results from itself before.
// Re-reduce values
values = [ avg1
, avg2
, avg3
]
Therefore I would begin by examining how your code works if and when rereduce is true. Perhaps something simple will fix it (although often I have to log() things until I find the problem.)
function(keys, values, rereduce) {
if(rereduce)
return sum(values);
// ... then the same code as before.
}
I will elaborate on my count/sum comment, just in case you are curious.
This code is not tested, but hopefully you will get the idea. The end result is always a simple object {"count":C, "sum":S} and you know the average by computing S / C.
function (key, values, rereduce) {
// Reduce function
var count = 0;
var sum = 0;
var i;
if(!rereduce) {
// `values` stores actual map output
for(i = 0; i < values.length; i++) {
count += Number(values[i][1]);
sum += Number(values[i][0]);
}
return {"count":count, "sum":sum};
}
else {
// `values` stores count/sum objects returned previously.
for(i = 0; i < values.length; i++) {
count += values[i].count;
sum += values[i].sum;
}
return {"count":count, "sum":sum};
}
}
I use the following code to do average. Hope it helps.
function (key, values) {
return sum(values)/values.length;
}