How can I print next values
'aa, bb, cc, dd, ee'
from DB column, like that:
'aa-bb, aa-cc, aa-dd, aa-ee, etc'?
NOTE: If I have, for example following value: 'aa-bb', so 'bb-aa' should be skipped out
My TSQL Example doesn't work:
select l.SURNAME + '-' + l1.SURNAME
from LECTURERS l cross join LECTURERS l1
where l.CITY = 'Kyiv' and l.SURNAME <> l1.SURNAME and LEFT(l1.SURNAME,
charindex('-', l1.SURNAME)) <> l.SURNAME
Prints me following 'aa-bb, aa-cc, aa-dd, aa-ee', but how can I except 'aa-bb' <> 'bb-aa'
Related
I have this table in postgres
CREATE TABLE target (
a json
b integer
c text []
id integer
CONSTRAINT id_fkey FOREIGN KEY (id)
REFERENCES public.other_table(id) MATCH SIMPLE
ON UPDATE NO ACTION
ON DELETE NO ACTION,
)
Which I would like to insert data to from psycopg2 using
import psycopg2
import psycopg2.extras as extras
# data is of the form dict, integer, list(string), string <- used to get fkey id
data = [[extras.Json([{'a':1,'b':2}, {'d':3,'e':2}]), 1, ['hello', 'world'], 'ident1'],
[extras.Json([{'a':4,'b':3}, {'d':1,'e':9}]), 5, ['hello2', 'world2'], 'ident2']]
# convert data to list of tuples containing objects
x = [tuple(u) for u in data]
# insert data to the database
query = ('WITH ins (a, b, c, ident) AS '
'(VALUES %s) '
'INSERT INTO target (a, b, c, id) '
'SELECT '
'ins.a '
'ins.b '
'ins.c '
'other_table.id'
'FROM '
'ins '
'LEFT JOIN other_table ON ins.ident = other_table.ident;')
cursor = conn.cursor()
extras.execute_values(cursor, query, x)
When I run this I get the error: column "a" is of type json but expression is of type text. I tried to solve this by adding a type cast in the SELECT statement but then I got the same error for c and then for b.
Originally I thought the problem lies in the WITH statement but based on the answers to my previous question this seems to not be the case Postgres `WITH ins AS ...` casting everything as text
It seems that execute_values is sending all the values as text with ' '.
Main Question: How can I get execute_values to send the values based on their python data type rather than just as text?
Sub questions:
How can I confirm that execute_values is in fact sending the values as text with quotation marks?
What is the purpose of the template argument of execute_values https://www.psycopg.org/docs/extras.html and could that be of help?
The issue, as Adrian Klaver points out in their comment, and also seen in this answer, is that the typing is lost in the CTE.
We can show this with an example in the psql shell:
CREATE TABLE test (col1 json);
WITH cte (c) AS (VALUES ('{"a": 1}'))
INSERT INTO test (col) SELECT c FROM cte;
resulting in
ERROR: column "col" is of type json but expression is of type text
whereas this version, with the type specified, succeeds:
WITH cte(c) AS (VALUES ('{"a": 1}'::json))
INSERT INTO test (col) SELECT c FROM cte;
We can mimic this in execute_valuesby providing the typing information in the template argument:
extras.execute_values(cursor, query, data, template='(%s::json, %s, %s, %s)')
Is there a way i could convert an actual string to a number in postgresql
i have record stored in db and below is an example of unique identifier found in each record.
d895774d-7b91-4adc-bfba-f1264e5aae04
I want to store this record in another database but i would want to generate another unique number for each transaction/line
Is there a way i can convert this d895774d-7b91-4adc-bfba-f1264e5aae04 to some number.
like this actual numbers 13693660123082308270370273012321321312321
select 'd895774d-7b91-4adc-bfba-f1264e5aae04' as id
First convert the string into a table of single characters (the from clause);
Then select the digits 'as is', a as 10, b as 11 and so on (the case expression);
Finally aggregate into a string (string_agg)
skipping the - characters (where clause).
select
string_agg(case when c between '0' and '9' then c else (ascii(c) - 87)::text end, '')
from unnest(string_to_array('d895774d-7b91-4adc-bfba-f1264e5aae04', null)) c
where c <> '-';
Result: 13895774137119141013121115111015126414510101404
Edit
select
td.date,
(
select string_agg(case when c between '0' and '9' then c else (ascii(c) - 87)::text end, '')
from unnest(string_to_array(td.id, null)) c
where c <> '-'
) as id
from table_d td;
I find in my sql database string whit weird whitespace which cannot be replace like REPLACE(string, ' ', '') RTRIM and cant it even find with string = '% %'. This space is even transfered to new table when using SELECT string INTO
If i select this string in managment studio and copy that is seems is normal space and when everything is works but cant do nothing directly from database. What else can i do? Its some kind of error or can i try some special character for this?
First, you must identify the character.
You can do that by using a tally table (or a cte) and the Unicode function:
The following script will return a table with two columns: one contains a char and the other it's unicode value:
DECLARE #Str nvarchar(100) = N'This is a string containing 1 number and some words.';
with Tally(n) as
(
SELECT TOP(LEN(#str)) ROW_NUMBER() OVER(ORDER BY ##SPID)
FROM sys.objects a
--CROSS JOIN sys.objects b -- (unremark if there are not enough rows in the tally cte)
)
SELECT SUBSTRING(#str, n, 1) As TheChar,
UNICODE(SUBSTRING(#str, n, 1)) As TheCode
FROM Tally
WHERE n <= LEN(#str)
You can also add a condition to the where clause to only include "special" chars:
AND SUBSTRING(#str, n, 1) NOT LIKE '[a-zA-Z0-9]'
Then you can replace it using it's unicode value using nchar (I've used 32 in this example since it's unicode "regular" space:
SELECT REPLACE(#str, NCHAR(32), '|')
Result:
This|is|a|string|containing|1|number|and|some|words.
I have create one report with list of the string. The string got value parameter TO.REFOS_STATUS_CODE in ('10','ZZ','11','12','13'). i want to replace "," with ".". i have try the solution with my expression but it does'nt work.
The parameter expression is $P{refos_status}.equalsIgnoreCase("0") ?" ": " TO.REFOS_STATUS_CODE IN ( " +$P{refos_status}.replace( ',', '.' )+ ")".
Anyone know how to do that?
This is my query:
SELECT
TO.REFOS_STATUS_DESC_RPT ,
SUM(US.ENFUS_TOTAL_OFF_ACT) TOTAL
FROM TENF_RPT_UNSETTLE_SUMMACT US
INNER JOIN TREF_BRANCH B ON B.REFBR_BRANCH_ID = US.ENFUS_BRANCH
INNER JOIN TREF_STATE ST ON B.REFBR_STATE_CODE = ST.REFST_STATE_CODE
INNER JOIN TREF_OFFENCE_STATUS TO ON US.ENFUS_OFF_ACT =TO.REFOS_STATUS_CODE
WHERE
$P!{refos_status_1}
GROUP BY
TO.REFOS_STATUS_CODE,
TO.REFOS_STATUS_DESC_RPT
ORDER BY
TO.REFOS_STATUS_CODE,
TO.REFOS_STATUS_DESC_RPT
I wish to write a Query for SAP B1 (t-sql) that will list all Income and Expenses Items by total and month by month.
I have successfully written a Query using PIVOT, but I do not want the column headings to be hardcoded like: Jan-11, Feb-11, Mar-11 ... Dec-11.
Rather I want the column headings to be parametrically generated, so that if I input:
--------------------------------------
Query - Selection Criteria
--------------------------------------
Posting Date greater or equal 01.09.10
Posting Date smaller or equal 31.08.11
[OK] [Cancel]
the Query will generate the following columns:
Sep-10, Oct-10, Nov-10, ..... Aug-11
I guess DYNAMIC PIVOT can do the trick.
So, I modified one SQL obtained from another forum to suit my purpose, but it does not work. The error message I get is Incorrect Syntax near 20100901.
Could anybody help me locate my error?
Note: In SAP B1, '[%1]' is an input variable
Here's my query:
/*Section 1*/
DECLARE #listCol VARCHAR(2000)
DECLARE #query VARCHAR(4000)
-------------------------------------
/*Section 2*/
SELECT #listCol =
STUFF(
( SELECT DISTINCT '],[' + CONVERT(VARCHAR, MONTH(T0.RefDate), 102)
FROM JDT1
FOR XML PATH(''))
, 1, 2, '') + ']'
------------------------------------
/*Section 3*/
SET #query = '
SELECT * FROM
(
SELECT
T0.Account,
T1.GroupMask,
T1.AcctName,
MONTH(T0.RefDate) as [Month],
(T0.Debit - T0.Credit) as [Amount]
FROM dbo.JDT1 T0
JOIN dbo.OACT T1 ON T0.Account = T1.AcctCode
WHERE
T1.GroupMask IN (4,5,6,7) AND
T0.[Refdate] >= '[%1]' AND
T0.[Refdate] <= '[%2]'
) S
PIVOT
(
Sum(Amount)
FOR [Month] IN ('+#listCol+')
) AS pvt
'
--------------------------------------------
/*Section 4*/
EXECUTE (#query)
I don't know SAP, but a couple of things spring to mind:
It looks like you want #listCol to contain a collection of numbers within square brackets, for example [07],[08],[09].... However, your code appears not to put a [ at the start of this string.
Try replacing the lines
T0.[Refdate] >= '[%1]' AND
T0.[Refdate] <= '[%2]'
with
T0.[Refdate] >= ''[%1]'' AND
T0.[Refdate] <= ''[%2]''
(I also added a space before the AND in the first of these two lines while I was editing your question.)