I have tried to simplify my question with the following example:
I have a table with the following data:
Marker Name Location
1 Eric Benson Mixed
2 John Smith Rural
3 A David Rural
4 B John Mixed
And i want to insert into the table:
Name Location
Andy Jones Mixed
Ian Davies Rural
How can i continue the sequencein the Marker column to end up with:
Marker Name Location
1 Eric Benson Mixed
2 John Smith Rural
3 A David Rural
4 B John Mixed
5 Andy Jones Mixed
6 Ian Davies Rural
If you make this with a Stored Procedure you can ask the max of the Marker before to insert.
(That only works if the Marker Column is not identity)
Like This:
declare #max_marker int
set #max_marker=isnull((select max(marker) from table),0)
--Insert comes here
Insert into table (Marker,Name,Location) Values(#max_marker+1,'Andy Jones','Mixed')
Related
I need to create column with name(s) (Supervisors - can be multiple supervisors at the same time, but also there might not be supervisor at all) from JSON format column, that not in 2 other column with names (Employee and Client).
Id
Employee
Client
AllParticipants
1
Justin Bieber
Ariana Grande
[{"ParticipantName":"Justin Bieber"},{"ParticipantName":"Ariana Grande"}]
2
Lionel Messi
Christiano Ronaldo
[{"ParticipantName":"Christiano Ronaldo"},{"ParticipantName":"Lionel Messi"}]
3
Nicolas Cage
Robert De Niro
[{"ParticipantName":"Robert De Niro"},{"ParticipantName":"Nicolas Cage"},{"ParticipantName":"Brad Pitt"}]
4
Harry Potter
Ron Weasley
[{"ParticipantName":"Ron Weasley"},{"ParticipantName":"Albus Dumbldor"},{"ParticipantName":"Harry Potter"},{"ParticipantName":"Lord Voldemort"}]
5
Tom Holland
Henry Cavill
[{"ParticipantName":"Henry Cavill"},{"ParticipantName":"Tom Holland"}]
6
Spider Man
Venom
[{"ParticipantName":"Venom"},{"ParticipantName":"Iron Man"},{"ParticipantName":"Superman"},{"ParticipantName":"Spider Man"}]
7
Andrew Garfield
Leonardo DiCaprio
[{"ParticipantName":"Tom Cruise"},{"ParticipantName":"Andrew Garfield"},{"ParticipantName":"Leonardo DiCaprio"}]
8
Dwayne Johnson
Jennifer Lawrence
[{"ParticipantName":"Jennifer Lawrence"},{"ParticipantName":"Dwayne Johnson"}]
The output column I need:
Supervisors
NULL
NULL
Brad Pitt
Albus Dumbldor, Lord Voldemort
NULL
Iron Man, Superman
Tom Cruise
NULL
I've tried to create extra columns to use Case expression after that, but it seems too complex.
SELECT *,
JSON_VALUE(w.AllParticipants,'$[0].ParticipantName') AS ParticipantName1,
JSON_VALUE(w.AllParticipants,'$[1].ParticipantName') AS ParticipantName2,
JSON_VALUE(w.AllParticipants,'$[2].ParticipantName') AS ParticipantName3,
JSON_VALUE(w.AllParticipants,'$[3].ParticipantName') AS ParticipantName4
FROM Work AS w
I'm wondering if there is an easy way to compare values and extract only unique ones.
I have two tables A and B. Table B has 4 columns(ID,NAME,CITY,COUNTRY), 3 columns has values and one column (ID) has NULLS. I want to insert max value from table A column ID to table B where the ID field in B should be in increasing order.
Screenshot
TABLE A
ID NAME
------- -------
231 Bred
134 Mick
133 Tom
233 Helly
232 Kathy
TABLE B
ID NAME CITY COUNTRY
------- ------- ---------- -----------
(NULL) Alex NY USA
(NULL) Jon TOKYO JAPAN
(NULL) Jeff TORONTO CANADA
(NULL) Jerry PARIS FRANCE
(NULL) Vicky LONDON ENGLAND
ID in column in B should be populated as MAX(ID) +1 from table A. The output should look like this:
TABLE B
ID NAME CITY COUNTRY
------ -------- ---------- -----------
234 Alex NY USA
235 Jon TOKYO JAPAN
236 Jeff TORONTO CANADA
237 Jerry PARIS FRANCE
238 Vicky LONDON ENGLAND
Perhaps the simplest method is to create a one-time sequence for the update:
create sequence temp_b_seq;
update b
set id = (select max(id) from a) + temp_b_seq.nextval;
drop sequence temp_b_seq;
You could actually initialize the sequence with the maximum value from a, but that requires dynamic SQL, so this seems like the simplest approach. Oracle should be smart enough to run the subquery only once.
I have one table:
Person Name Country code
Andrew 1
Philip 2
John 1
Daniel 2
and a lookup table:
Country code Country name
1 USA
2 UK
I added them to powerpivot, created a relationship between the country code fields, then I created a pivot table. I expect to get the following:
Person Name Country code
Andrew USA
Philip UK
John USA
Daniel UK
But what I actually get is:
Person Name Country code
Andrew USA
Andrew UK
Philip USA
Philip UK
John USA
John UK
Daniel USA
Daniel UK
Couple of options:
Add a column to your main table that uses a formula to pull in the Country Name from your LookUp Table e.g.
=RELATED(LookUpTable[Country Name])
If you drag in any measure that references the main table you will get your desired result e.g. =COUNTROWS('MainTable') You then hide the results column if you had to.
I have to write a query in Oracle. I have a table called 'Entity' with 2 columns 'Pref_mail_name' and 'spouse_name'.
Now i want list of all spouse_name where the last name of the spouse_name is not populated from pref_mail_name.
For example my table has following data
Pref_mail_name spouse_name
Kunio Tanaka | Lorraine
Mrs. Betty H. Williams | Chester Williams
Mr. John Baranger | Mrs. Cathy Baranger
William kane Gallio | Karen F. Gallio
Sangon Kim | Jungja
i need output as 1st and 5th row only. I did some analysis and came up with oracle built in function
SELECT PREF_MAIL_NAME, SPOUSE_NAME, UTL_MATCH.JARO_WINKLER_SIMILARITY(a, b)
similarity from entity
order by similarity;
But above query is not looking genuine.Even though spouse last name is not populated from pref_mail_name its giving a value above 80 for similarity.
I am trying to create a view that records the selected attributes for all Computer Science majors.
This is my query to create a view:
DROP VIEW CS_grade_report;
CREATE VIEW CS_grade_report AS
SELECT Student.student_id AS "ID",
student_name AS "Name",
course_number AS "Course #",
credit AS "Credit",
grade AS Grade
FROM Student, Class, Enrolls
WHERE major = 'CSCI'
AND Student.student_id = Enrolls.student_id
AND Class.schedule_num = Enrolls.schedule_num;
SELECT *
FROM CS_grade_report;
And this is what is generated:
ID Name Course # Credit GR
------ ------------------------- -------- ---------- --
600000 John Smith CSCI3200 4 B+
600000 John Smith CSCI3700 3 C
600000 John Smith SPAN1004 3 A-
600000 John Smith CSCI4300 3 A+
600001 Andrew Tram MUSC2406 2 A+
600001 Andrew Tram SPAN1004 3 A
600001 Andrew Tram CSCI3700 3 B-
600002 Jane Doe CSCI4200 3 D+
600003 Michael Jordan CSCI4300 3 A+
600004 Tiger Woods MUSC1000 1 A
600007 Dominique Davis CSCI4300 3 F
ID Name Course # Credit GR
------ ------------------------- -------- ---------- --
600009 Will Smith CSCI3200 4 A
600010 Papa Johns CSCI3200 4 B
600011 John Doe CSCI3200 4 C
600012 Jackie Chan CSCI3200 4 D
600013 Some Guy CSCI3200 4 E
16 rows selected.
I am assuming this is output from sqlplus. There is a "pagesize" option to define when breaks are added. If you only want to see one heading, set the size to a large enough value prior to running your SELECT statement as such:
set pagesize 500
(or whatever size you want)
There are many command options for sqlplus. This link is a good cheat-sheet.