The query I start out with has 40,000 lines of empty rows, which stems from a problem with the original spreadsheet from which it was taken.
Using CF16 server
I would like to do a Query of Queries on a variably named 'key column'.
In my query:
var keyColumn = "Permit No."
var newQuery = "select * from source where (cast('#keyColumn#' as varchar) <> '')";
Note: the casting comes from this suggestion
I still get all those empty fields in there.
But when I use "City" as the keyColumn, it works. How do the values in both those columns differ when they both say [empty string] on the query dump?
Is it a problem with column names? What kind of data are in those cells?
where ( cast('Permit No.' as varchar) <> '' )
The problem is the SQL, not the values. By enclosing the column name in quotes, you are actually comparing the literal string "P-e-r-m-i-t N-o-.", not the values inside that column. Since the string "Permit No." can never equal an empty string, the comparison always returns true. That is why the resulting query still includes all rows.
Unless it was fixed in ColdFusion 2016, QoQ's do not support column names containing invalid characters like spaces. One workaround is to use the "columnNames" attribute to specify valid column names when reading the spreadsheet. Failing that, another option is to take advantage of the fact that query columns are arrays and duplicate the data under a valid column name: queryAddColumn(yourQuery, "PermitNo", yourQuery["Permit No."]) (Though the latter option is less ideal because it may require copying the underlying data internally):
Related
Hi i have string in BigQuery column like this
cancellation_amount: 602000
after_cancellation_transaction_amount: 144500
refund_time: '2022-07-31T06:05:55.215203Z'
cancellation_amount: 144500
after_cancellation_transaction_amount: 0
refund_time: '2022-08-01T01:22:45.94919Z'
i already using this logic to get cancellation_amount
regexp_extract(file,r'.*cancellation_amount:\s*([^\n\r]*)')
but the output only amount 602000, i need the output 602000 and 144500 become different column
Appreciate for helping
If your lines in the input (which will eventually become columns) are fixed you can use multiple regexp_extracts to get all the values.
SELECT
regexp_extract(file,r'cancellation_amount:\s*([^\n\r]*)') as cancellation_amount
regexp_extract(file,r'. after_cancellation_transaction_amount:\s*([^\n\r]*)') as after_cancellation_transaction_amount
FROM table_name
One issue I found with your regex expression is that .*cancellation_amount won't match after_cancellation_transaction_amount.
There is also a function called regexp_extract_all which returns all the matches as an array which you can later explode into columns, but if you have finite values separating them out in different columns would be a easier.
I want to add a column called "Sweep" that contains bools based on whether the "Result" was a sweep or not. So I want the value in the "Sweep" column to be True if the "Result" is '4-0' or '0-4' and False if it isn't.
This is a part of the table:
I tried this:
ALTER TABLE "NBA_finals_1950-2018"
ADD "Sweep" BOOL;
UPDATE "NBA_finals_1950-2018"
SET "Sweep" = ("Result" = '4-0' OR "Result" = '0-4');
But for some reason, when I run this code...:
SELECT *
FROM "NBA_finals_1950-2018"
ORDER BY "Year";
...only one of the rows (last row) has the value True even though there are other rows where the result is a sweep ('4-0' or '0-4') as shown in the picture below.
I don't know why this is happening but I guess there is something wrong with the UPDATE...SET code. Please help.
Thanks in advance.
NOTE: I am using PostgreSQL 13
This would occur if the strings are not really what they look like -- this is often due to spaces at the beginning or end. Or perhaps to hyphens being different, or other look-alike characters.
You just need to find the right pattern. So so with a select. This returns no values:
select *
from "NBA_finals_1950-2018"
where "Result" in ('4-0', '0-4');
You can try:
where "Result" like '%0-4%' or
"Result" like '%4-0%'
But, this should do what you want:
where "Result" like '%4%' and
"Result" like '%0%'
because the numbers are all single digits.
You can incorporate this into the update statement.
Note: double quotes are a bad idea. I would recommend creating tables and columns without escaping the names.
I have an Access table with a field that contains alphanumeric values (1234, 123A, 12A34, ABC3, etc). I am trying to create a conditional update query to add leading zeros to bring all values that contain at least 1 letter up to five characters but none to the only numeric values (eg 123, 00A12, 0000X).
My current code looks like:
UPDATE MyTable SET MyTable!Field = Format(Field, String(5, "0")) WHERE MyTable!Field LIKE '*[A-Z]*'
When I run the query, I don't get any error messages but it also fails to add any leading zeros.
I've also tried Format(Field, "00000") using Not Like and '*[0-9]*' or '*[0123456789]*' etc.
Interestingly, when I run a query by itself to select any of the values containing a letter (Like '*[A-Z]*'), it correctly pulls all 1000 values that need to be updated but when I add the conditional, it fails. Similarly, I've been successful in the past with adding leading zeros the entire field using Format(Field), String(5, "0") but it also fails when I add a conditional.
I'm pretty new to Access and SQL, so I feel like I've probably misunderstood the syntax somewhere. Or is there something else I should be doing?
Format() is wrong function to use.
If every value in field is 5 characters or less, consider:
UPDATE MyTable SET Field = String(5-Len(Field), "0")) & Field WHERE Not IsNumeric(Nz(Field,0))
I am trying to use a cell as a parameter in Excel powerquery. The query works without this, but I have to manually input the values, which I need to constantly change them in the query in other to get the results that I want.
Query (Advanced Editor):
let
Criteria01 = Excel.CurrentWorkbook(){[Name="Servers"]}[Content][ServerSearch]{0},
Criteria02 = Excel.CurrentWorkbook(){[Name="Servers"]}[Content][ServerSearch]{1},
Criteria03 = Excel.CurrentWorkbook(){[Name="Servers"]}[Content][ServerSearch]{2},
Source = Sql.Database("SERVERNAMEHERE", "DATABASENAMEHERE", [Query="SELECT DISTINCT [...........] AND (TABLEPREF.COLUMNHERE like '%MANUALVALUE01%' OR#(lf)TABLEPREF.COLUMNHERE like '%MANUALVALUE02%' OR#(lf)TABLEPREF.COLUMNHERE like '%MANUALVALUE03%' OR#(lf)TABLEPREF.COLUMNHERE like Criteria01)#(lf)#(lf)#(lf)order by 1 asc"])
in
Source
"Servers" is the table name and "ServerSearch" is the column header. If I check the step for Criteria01/etc it will show me the correct value of that table that I need to use.
Original query done in Sql-Server. I have no problems when running the query with only LIKE '%MANUALVALUES%' lines.
My main goal is to automatically get N values of "MANUALVALUES" from a table in a sheet, which will be used as an input for comparing WHERE TABLEPREF.COLUMNHERE like '%VALUEHERE%'. I must use this and I can't get the whole table/database because there are way too many results besides the ones that I want.
However for test purposes at this moment, I am trying to use only 1-3 values, the first 3 of this table (Criteria{0}{1}{2} in the query above). However, if I try to do something like TABLEPREF.COLUMNHERE like Criteria01 I get the following error:
DataSource.Error: Microsoft SQL: Invalid column name 'Criteria01'.
Details:
DataSourceKind=SQL
DataSourcePath=dalsql390;itdw
Message=Invalid column name 'Criteria01'.
Number=207
Class=16
So my questions are:
I am getting the table cell value by the right way? Meaning:
Excel.CurrentWorkbook(){[Name="Servers"]}[Content][ServerSearch]{0}.
How do I refer this value in my query? Since the way that I wrote
that query bought me that error.
Also please note that if change TABLEPREF.COLUMNHERE like
Criteria01 to CHG1.CI_Name like "Criteria01" I get the
following error:
Expression.SyntaxError: Token Comma expected.
After fixed 1 and 2, how can I use this dynamically? For
example, instead of getting values of index 1 2 3, what if I want to
use a whole table? I know that using
Excel.CurrentWorkbook(){[Name="Servers"]}[Content] will bring me the whole table of values (1 column, unknown number of rows), but
how do I use this table content 1 by 1 in my query?
That will get the value, but you can't refer to steps inside of text values by putting the step name inside of it.
You have a couple options for doing this dynamically.
Use Value.NativeQuery to create a parameterized query where you can pass in other values as parameters. For example, Value.NativeQuery(Sql.Database("SERVERNAMEHERE", "DATABASENAMEHERE"), "select #a, #b", [a = 1, b = "x"]) will return the table [1, x]. You can put in the step name in the record value to pass that it (e.g. replace "x" with Criteria01).
Add the text values directly in the query field, e.g. [Query = "select " & Criteria01 ";"]. This is highly discouraged since this can lead to SQL injection issues.
For the third question, it depends what you want to do with the list of values. At some point you will likely need List.Accumulate to turn them all into a single text value which can be placed in the query value, and maybe to turn them into a record to place into the parameters value.
I found a weird problem with MySQL select statement having "IN" in where clause:
I am trying this query:
SELECT ads.*
FROM advertisement_urls ads
WHERE ad_pool_id = 5
AND status = 1
AND ads.id = 23
AND 3 NOT IN (hide_from_publishers)
ORDER BY rank desc
In above SQL hide_from_publishers is a column of advertisement_urls table, with values as comma separated integers, e.g. 4,2 or 2,7,3 etc.
As a result, if hide_from_publishers contains same above two values, it should return only record for "4,2" but it returns both records
Now, if I change the value of hide_for_columns for second set to 3,2,7 and run the query again, it will return single record which is correct output.
Instead of hide_from_publishers if I use direct values there, i.e. (2,7,3) it does recognize and returns single record.
Any thoughts about this strange problem or am I doing something wrong?
There is a difference between the tuple (1, 2, 3) and the string "1, 2, 3". The former is three values, the latter is a single string value that just happens to look like three values to human eyes. As far as the DBMS is concerned, it's still a single value.
If you want more than one value associated with a record, you shouldn't be storing it as a comma-separated value within a single field, you should store it in another table and join it. That way the data remains structured and you can use it as part of a query.
You need to treat the comma-delimited hide_from_publishers column as a string. You can use the LOCATE function to determine if your value exists in the string.
Note that I've added leading and trailing commas to both strings so that a search for "3" doesn't accidentally match "13".
select ads.*
from advertisement_urls ads
where ad_pool_id = 5
and status = 1
and ads.id = 23
and locate(',3,', ','+hide_from_publishers+',') = 0
order by rank desc
You need to split the string of values into separate values. See this SO question...
Can Mysql Split a column?
As well as the supplied example...
http://blog.fedecarg.com/2009/02/22/mysql-split-string-function/
Here is another SO question:
MySQL query finding values in a comma separated string
And the suggested solution:
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_find-in-set