I have a text field in my SQLite database that stores a Time value, but for unrelated reasons I can't change the data type to TIME.
The values are stored in HH:MM format, and I'm having trouble trying to sort results by time because the values below '10:00' are missing a leading zero. I would prefer not to store the data with leading zero for the same unrelated reasons.
I'd like to add something to the Query that would pad the missing character if necessary, causing the results to read '08:30' when collected. I've been searching through the command and function lexicon though and I'm not finding what I need.
Is there a simple way to do this inside a query?
Thanks
I think this would work:
select your_col, case when length(your_col) < 5
then '0' || your_col else your_col end from your_table
Demo using Python
>>> conn.execute('''select c, case when length(c) < 5
then '0' || c else c end from t''').fetchall()
[(u'10:00', u'10:00'), (u'8:00', u'08:00')]
SELECT REPLACE(PRINTF('%5s', your_col), ' ', '0') FROM your_table
The PRINTF call pads the value with spaces until it's 5 characters, and the
REPLACE call replaces those spaces with zeros.
Related
I have had to look up hundreds (if not thousands) of free-text answers on google, making notes in Excel along the way and inserting SAS-code around the answers as a last step.
The output looks like this:
This output contains an unnecessary number of blank spaces, which seems to confuse SAS's search to the point where the observations can't be properly located.
It works if I manually erase superflous spaces, but that will probably take hours. Is there an automated fix for this, either in SAS or in excel?
I tried using the STRIP-function, to no avail:
else if R_res_ort_txt=strip(" arild ") and R_kom_lan=strip(" skåne ") then R_kommun=strip(" Höganäs " );
If you want to generate a string like:
if R_res_ort_txt="arild" and R_kom_lan="skåne" then R_kommun="Höganäs";
from three variables, let's call them A B C, then just use code like:
string=catx(' ','if R_res_ort_txt=',quote(trim(A))
,'and R_kom_lan=',quote(trim(B))
,'then R_kommun=',quote(trim(C)),';') ;
Or if you are just writing that string to a file just use this PUT statement syntax.
put 'if R_res_ort_txt=' A :$quote. 'and R_kom_lan=' B :$quote.
'then R_kommun=' C :$quote. ';' ;
A saner solution would be to continue using the free-text answers as data and perform your matching criteria for transformations with a left join.
proc import out=answers datafile='my-free-text-answers.xlsx';
data have;
attrib R_res_ort_txt R_kom_lan length=$100;
input R_res_ort_txt ...;
datalines4;
... whatever all those transforms will be performed on...
;;;;
proc sql;
create table want as
select
have.* ,
answers.R_kommun_answer as R_kommun
from
have
left join
answers
on
have.R_res_ort_txt = answers.res_ort_answer
& have.R_kom_lan = abswers.kom_lan_answer
;
I solved this by adding quotes in excel using the flash fill function:
https://www.youtube.com/watch?v=nE65QeDoepc
I have a string variable with comma separated numbers that I want to split into four numeric variables.
makeArr
var1a
var1b
var1c
var1d
6,8,13,10
6
8
13
10
10,11,2
10
11
2
7,1,14,3
7
1
14
3
With:
IF (CHAR.INDEX(makeArr,',') >= 1)
f12a=CHAR.SUBSTR(makeArr,1,CHAR.INDEX(makeArr,',')-1).
EXECUTE.
IF (CHAR.INDEX(makeArr,',') >= 1)
f12b=CHAR.SUBSTR(makeArr,CHAR.INDEX(makeArr,',')+1,CHAR.INDEX(makeArr,',')-1).
EXECUTE.
I always get the first variable written without any problems.
This no longer works with the second variable because it has a different length and the comma is also written here.
So I would need a split at the comma and the division of the numbers over the comma.
Since char.substr will only tell you about the location of the first occurence of the search string, you need to start the second search from a new location - AFTER the first occurence, and this gets more and more complicated as you continue. My suggestion is create a copy of your array variable, which you will cut pieces off as you proceed - so that you are only searching for the first occurence of "," every time.
First I recreate your example data to demonstrate on.
data list free/makeArr (a20).
begin data
"6,8,13,10" "10,11,2" "7,1,14,3"
end data.
Now I copy your array into a new variable #tmp. Note that I add a "," at the end so the syntax stays the same for all parts of the array. I add the "#" at the beginning of the name to make it invisible, you can remove it if you want.
It is possible to do the following calculation in steps as you started to do, but nicer to loop throug the steps (especially if this is an example for a longer array).
string f12a f12b f12c f12d #tmp (a20).
compute #tmp=concat(rtrim(makeArr),",").
do repeat nwvr=f12a f12b f12c f12d.
do IF #tmp<>"".
compute nwvr=CHAR.SUBSTR(#tmp,1,CHAR.INDEX(#tmp,',')-1).
compute #tmp=CHAR.SUBSTR(#tmp,CHAR.INDEX(#tmp,',')+1).
end if.
end repeat.
EXECUTE.
Here I found a different solution for what I think is the same problem:
https://www.ibm.com/mysupport/s/question/0D50z00006PsP3tCAF/splitting-a-string-variable-divided-by-commas-into-new-single-variables?language=es
One line of code makes the work:
spssinc trans result=var_1 to var_4 type=20/formula 're.split(", *", makeArr)'.
I have a string field with mostly numeric values like 13.4, but some have 13.4%. I am trying to use the following expression to remove the % symbols and retain just the numeric values to convert the field to integer.
Here is what I have so far in the expression definition of Cognos 8 Report Studio:
IF(POSITION('%' IN [FIELD1]) = NULL) THEN
/*** this captures rows with valid data **/
([FIELD1])
ELSE
/** trying to remove the % sign from rows with data like this 13.4% **/
(SUBSTRING([FIELD1]), 1, POSITION('%' IN [FIELD1])))
Any hints/help is much appreciated.
An easy way to do this is to use the trim() function. The following will remove any trailing % characters:
TRIM(trailing '%',[FIELD1])
The approach you are using is feasable. However, the syntax you are using is not compatible with the version of the ReportStudio that I'm familiar with. Below you will find an updated expression which works for me.
IF ( POSITION( '%'; [FIELD1]) = 0) THEN
( [FIELD1] )
ELSE
( SUBSTRING( [FIELD1]; 1; POSITION( '%'; [FIELD1]) - 1 ) )
Since character positions in strings are 1-based in Cognos it's important to substract 1 from the position returned by POSITION(). Otherwise you would only cut off characters after the percent sign.
Another note: what you are doing here is data cleansing. It's usually more advantageous to push these chores down to a lower level of the data retrieval chain, e.g. the Data Warehouse or at least the Framework Manager model, so that at the reporting level you can use this field as numeric field directly.
I am creating a program which opens an image, and uses the MATLAB ginput command to store x and y coordinates, which are operated on in the loop to fulfill requirements of an if statement and output a number or string corresponding to the region clicked during the ginput session. At the same time, I am using the input command to input a string from the command window relating to these numbers. The ginput session is placed in a while loop so a click in a specific area will end the input session. For each session (while loop), only one or two inputs from the command window are needed. Finally, I am trying to store all the data in a csv or txt file, but I would like it to be tabulated so it is easy to read, i.e. rows and columns with headers. I am including some sample code. My questions are: 1, how can an input of x and y coordinates be translated to a string? It is simple to do this for a number, but I cannot get it to work with a string. 2, any help on printing the strings and number to a tabulated text or cdv file would be appreciated.
Command line input:
prompt='Batter:';
Batter=input(prompt,'s');
While Loop:
count=1;
flag=0;
while(flag==0)
[x,y]= ginput(1);
if (y>539)
flag=1;
end
if x<594 && x>150 && y<539 && y>104
%it's in the square
X=x;
Y=y;
end
if x<524 && x>207 && y<480 && y>163
result='strike'
else
result='ball'
end
[x,y]= ginput(1);
pitch=0;
if x<136 && x>13
%its' pitch column
if y<539
pitch=6;
end
if y<465
pitch=5;
end
if y<390
pitch=4;
end
if y<319
pitch=3;
end
if y<249
pitch=2;
end
if y<175
pitch=1;
end
end
if pitch==0
else
plot(X,Y,'o','MarkerFaceColor',colors(pitch),'MarkerSize',25);
text(X,Y,mat2str(count));
end
count=count+1
M(count,:)=[X,Y,pitch];
end
For the above series of if statements, I would prefer a string output rather than the numbers 1-6 if the condition is satisfied.
The fprintf function is used to print to a file, but I have issues combining the strings and numbers using it:
fileID = fopen('pitches.csv','w');
fid = fopen('gamedata.txt','w');
fmtString = [repmat('%s\t',1,size(Batter,2)-1),'%s\n'];
fprintf(fid,fmtString,Batter,result);
fclose(fid);
for i=1:length(M)
fprintf(fileID,'%6.2f %6.2f %d\n',M(i,1),M(i,2),M(i,3));
end
fclose(fileID);
I have tried adding the string handles to the fprintf command along with the columns of M, but get errors. I either need to store them in an array (How?) and print all the array columns to the file, or use some other method. I also tried a version of the writetable method:
writetable(T,'tabledata2.txt','Delimiter','\t','WriteRowNames',true)
but I can't get everything to work right. Thanks very much for any help.
Let's tackle your questions one at a time:
1, how can an input of x and y coordinates be translated to a string?
You can use the sprintf command in MATLAB. This takes exactly the same syntax as fprintf, but the output of this function will give you a string / character array of whatever you desire.
2, any help on printing the strings and number to a tabulated text or cdv file would be appreciated.
You can still use fprintf but you can specify a matrix as the input. As such, you can do this:
fprintf(fileID,'%6.2f %6.2f %d\n', M.');
This will write the entire matrix to file. However, care must be taken here because MATLAB writes to files in column major format. This means that it will traverse along the rows before going to the next column. If you want to write data row by row, you will need to transpose the matrix first so that when you are traversing down the rows, it will basically do what you want. You will need to keep this in mind before you start trying to write strings to an file. What I would recommend is that you place each string in a cell array, then loop through each element in the cell array and write each string individually line by line.
Hopefully this helps push you in the right direction. Reply back to me in a comment and we can keep talking if you need more help.
I currently have an assignemnt where i have to handle data from a lot of countries. My customer have given me a list of acceptable characters, lets call it:
'aber =*'
All other characters should just be changed to '_'.
I know the conversion for my country's specific chars (æøå), easily done with something like
select replace ('Ål', 'Å', 'AA') from dual;
But how would i go about removing all unwanted "noise" without splitting it up in char-by-char comparison?
For example "bear*2 = fear" should become "bear*_ = _ear" as 2 and f are not in the accepted list.
Oracle 10g and up. As one of the approaches, you can use regular expression function regexp_replace():
select regexp_replace('bear*2 = fear', '[^aber =*]', '_') as res
from dual
res
------------------------------
bear*_ = _ear
Find out more about regexp_replace() function.