I need to have the 2 strings values merge, but without the source code and the " " if possible. I tried everything but it's only giving me these results, which are the good results, but without the source code.
CODE:
SELECT (fn:concat ((str(?titre)), ". " , (str(?membreDeST))) AS ?nom)
WHERE {?UER_ST foaf:member ?membreDeST .
?membreDeST foaf:title ?titre.
?membreDeST foaf:familyName ?nomDeFamille. FILTER(regex (str(?nomDeFamille), "Paquette", "i"))
}
RESULT:
"M. http://exemple.teluq.ca/ressources/Gilbert_Paquette"
RESULT I should have:
M.Gilbert_Paquette
The query that I did can extract the members who their family name is Paquette. And to be more precise I need to put the title of the person plus their complete name, for those who their family name is Paquette. If anyone one can help, it will be really appreciated.
Related
When I implement code for one paricular value of state name (see Last_ residence in code)
andhrapradesh.query('Duration_of_residence=="All durations of residence" & Last_residence_R_or_U=="Urban" & Last_residence=="Jammu & Kashmir"',inplace=True)
print(andhrapradesh['Total_migrants'].sum())
It gives desired sum of outflow value for that state from pandas csv.
But when I tried to calculate for all possible names of state it's giving me error "UndefinedVariableError: name 'Jammu & Kashmir' is not defined"
states = ["Jammu & Kashmir","Punjab",'Himachal Pradesh']
for name in states:
andhrapradesh.query(f'Duration_of_residence=="All durations of residence" & Last_residence_R_or_U=="Urban" & Last_residence=={name}',inplace=True)
print(andhrapradesh['Total_migrants'].sum())
can you please figure out why it showing error and how can I do it for all values in list states.
You need quotes around name like you had in your manual code:
df.query(f"... Last_residence == \"{name}\"")
so that it is seen as, e.g., "Punjab" as a string to check against but not bare Punjab which is sought specially, e.g., as a column name, hence the error.
(can use single quotes too...)
However, there's a better way: you can prefix a variable with # symbol, so you don't even need the f-string:
df.query("... Last_residence == #name")
I have two sets of similar codes that gives different output. The first example does not return any output but the second example returns a output using the same search input.
First Example:
sql = "SELECT accessionID, title, ISBN, publisher, publicationYear FROM Books WHERE %s LIKE %s";
cursor.execute(sql,(col, "%" + values + "%",))
Second Example:
sql = "SELECT accessionID, title, ISBN, publisher, publicationYear FROM Books WHERE title LIKE %s";
cursor.execute(sql,("%" + values + "%",))
The codes that I am trying to code out is that WHERE is dynamic that depends on which text field user searches on. For example, if a user searches something on the title text box, it will only look into Title.
Another way I could think of is to use If conditions to hardcode, but it only works for the first If conditions and subsequent one does not work.
My question is how to make the SQL line dynamic (using first example) in the sense that I can do two %s in the SQL query line and still get the same output?
An Excel table as data source may contain error values (#NA, #DIV/0), which could disturbe later some steps during the transformation process in Power Query.
Depending of the following steps, we may get no output but an error. So how to handle this cases?
I found two standard steps in Power Query to catch them:
Remove errors (UI: Home/Remove Rows/Remove Errors) -> all rows with an error will be removed
Replace error values (UI: Transform/Replace Errors) -> the columns have first to be selected for performing this operations.
The first possibility is not a solution for me, since I want to keep the rows and just replace the error values.
In my case, my data table will change over the time, means the column name may change (e.g. years), or new columns appear. So the second possibility is too static, since I do not want to change the script each time.
So I've tried to get a dynamic way to clean all columns, indepent from the column names (and number of columns). It replaces the errors by a null value.
let
Source = Excel.CurrentWorkbook(){[Name="Tabelle1"]}[Content],
//Remove errors of all columns of the data source. ColumnName doesn't play any role
Cols = Table.ColumnNames(Source),
ColumnListWithParameter = Table.FromColumns({Cols, List.Repeat({""}, List.Count(Cols))}, {"ColName" as text, "ErrorHandling" as text}),
ParameterList = Table.ToRows(ColumnListWithParameter ),
ReplaceErrorSource = Table.ReplaceErrorValues(Source, ParameterList)
in
ReplaceErrorSource
Here the different three queries messages, after I've added two new column (with errors) to the source:
If anybody has another solution to make this kind of data cleaning, please write your post here.
let
src = Excel.CurrentWorkbook(){[Name="Tabelle1"]}[Content],
cols = Table.ColumnNames(src),
replace = Table.ReplaceErrorValues(src, List.Transform(cols, each {_, "!"}))
in
replace
Just for novices like me in Power Query
"!" could be any string as substitute for error values. I initially thought it was a wild card.
List.Transform(cols, each {_, "!"}) generates the list of error handling by column for the main funcion:
Table.ReplaceErrorValues(table_with errors, {{col1,error_str1},{col2,error_str2},{},{}, ...,{coln,error_strn}})
Nice elegant solution, Sergei
I have a field named field, and I would like to see if it is null, but I get an error in the query, my code is this:
let
Condition= Excel.CurrentWorkbook(){[Name="test_table"]}[Content],
field= Condition{0}[fieldColumn],
query1="select * from students",
if field <> null then query1=query1 & " where id = '"& field &"',
exec= Oracle.Database("TESTING",[Query=query1])
in
exec
but I get an error in the condition, do you identify the mistake?
I got Expression.SyntaxError: Token Identifier expected.
You need to assign the if line to a variable. Each M line needs to start with an assignment:
let
Condition= Excel.CurrentWorkbook(){[Name="test_table"]}[Content],
field= Condition{0}[fieldColumn],
query1="select * from students",
query2 = if field <> null then query1 & " some stuff" else " some other stuff",
exec= Oracle.Database("TESTING",[Query=query2])
in
exec
In query2 you can build the select statement. I simplified it, because you also have conflicts with the double quotes.
I think you're looking for:
if Not IsNull(field) then ....
Some data types you may have to check using IsEmpty() or 'field is Not Nothing' too. Depending on the datatype and what you are using.
To troubleshoot, it's best to try to set a breakpoint and locate where the error is happening and watch the variable to prevent against that specific value.
To meet this requirement, I would build a fresh Query using the PQ UI to select the students table/view from Oracle, and then use the UI to Filter the [id] column on any value.
Then in the advanced editor I would edit the generated FilteredRows line using code from your Condition + field steps, e.g.
FilteredRows = Table.SelectRows(TESTING_students, each [id] = Excel.CurrentWorkbook(){[Name="test_table"]}{0}[fieldColumn])
This is a minor change from a generated script, rather than trying to write the whole thing from scratch.
The problem is this:
In my programme at first the user gets options for a first name - so hopefully he likes something from the options and he chooses it -so far everything is OK!
But then when he types space he starts receiving options for second name and a if he likes something and chooses it - then the Autocomplete just erases the first name. Is there any way I can change that?
hello Rich thank you very much or your response - now i've decided to change my task and here is what I made when a user types for example I character i get all the first names that start with I- so far no problem! ANd when he types the white space and K for example I make request to my web service that gets the middle names that starts with K or the last names that start with K (one of them should start with K for Iwelina), so in this case for Iwelina Ive got RADULSKA KOSEWA and KOSEWA NEDEWA! For the source of autocomplete I concatenate iwelina with (radulska kosewa)and iwelina with (KOSEWA NEDEWA) so at the end I've got IWELINA IELINA RADULSKA KOSEWA and IWELINA KOSEWA NEDEWA!!! the only problem is that when i type Iwelina K i get only IWELINA KOSEWA NEDEWA!!!here is the code for autocomlete
$('#input').autocomplete({
source: function(request, response) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term, " "));
var data = $.grep( srcAutoComp, function(value) {
return matcher.test( value.label || value.value || value );
});
response(data);
}
});
if you know how i can change it I will be glad for the help
I don't understand how, when the user begines to type the second name, he's getting results that are only the last name. For example, if he types "Joh" and selects "John" from the options, and then continues to type "John Do", then how is it possible that your drop down gives him results for only the last name, like "Doe"?
At any rate, assuming this is truly happening, you could just combine all combinations of first and last names in your source data and that will show "John Doe" in the drop down when the user types "Joh" selects "John" and then continues to type "John Do".
Another way to do this is with a complicated change to the search and response events to search after a space if it is there, and recombine it with the first string after the search for the last name is complete. If you give me your source data, I could put something together for this.