I have a JSON column containing col_values for another table. I want to return rows from that other table for each item in the JSON object.
If this was an INT column, I would use JOIN, but I need to JOIN every entry in the JSON object.
Take:
writers :
| id | name | projects (JSON) |
|:-- |:-----|:------------------|
| 1 | Andy | ["1","2","3","4"] |
| 2 | Hank | ["3","4","5","6"] |
| 3 | Alex | ["1","7","8","9"] |
| 4 | Joe | ["1","5","6","7"] |
| 5 | Ken | ["2","4","5","6"] |
| 6 | Zach | ["2","7","8","9"] |
| 7 | Walt | ["2","5","6","7"] |
| 8 | Mike | ["2","3","4","5"] |
cities :
| id | name | project |
|:-- |:---------|:--------|
| 1 | Boston | 1 |
| 2 | Chicago | 2 |
| 3 | Cisco | 3 |
| 4 | Seattle | 4 |
| 5 | North | 5 |
| 6 | West | 6 |
| 7 | Miami | 7 |
| 8 | York | 8 |
| 9 | Tainan | 9 |
| 10 | Seoul | 1 |
| 11 | South | 2 |
| 12 | Tokyo | 3 |
| 13 | Carlisle | 4 |
| 14 | Fugging | 5 |
| 15 | Turkey | 6 |
| 16 | Paris | 7 |
| 17 | Midguard | 8 |
| 18 | Fugging | 9 |
| 19 | Madrid | 1 |
| 20 | Salvador | 2 |
| 21 | Everett | 3 |
I need every city ordered by name for Mike (id=8).
Desired results:
This is what I'm getting and what I need to get (ORDER BY name).
Output :
| id | name | project |
|:---|:---------|:--------|
| 13 | Carlisle | 4 |
| 2 | Chicago | 2 |
| 3 | Cisco | 3 |
| 21 | Everett | 3 |
| 14 | Fugging | 5 |
| 5 | North | 5 |
| 20 | Salvador | 2 |
| 4 | Seattle | 4 |
| 11 | South | 2 |
| 12 | Tokyo | 3 |
Current query, but this can't be the best way...
SQL >
SELECT c.*
FROM cities c
WHERE EXISTS (
SELECT 1
FROM writers w
WHERE JSON_CONTAINS(
w.projects, CONCAT('\"', c.project, '\"'))
AND w.id = '8'
)
ORDER BY c.name;
DB Fiddle with the above. Is there a better way to do this "properly"?
Background
If it matters, I need to keep using JSON as the datatype because my server-side software that uses this database normally reads that column best if presented as a JSON object.
I would normally just do several database calls and iterate through that JSON object in my server-side language, but that is way too expensive with so many database calls, notwithstanding that it is even more costly to do multiple database calls for pagination.
I need all the results in a single database call. So, I need to JOIN or otherwise loop through each item in the JSON object within SQL.
Start with JOIN
Per a comment from a user, there is a better way...
SQL >
SELECT c.*
FROM writers w
JOIN cities c ON JSON_CONTAINS(w.projects, CONCAT('\"', c.project, '\"'))
WHERE w.id = '8'
ORDER BY c.name;
Output is the same...
Output :
id
name
project
13
Carlisle
4
2
Chicago
2
3
Cisco
3
21
Everett
3
14
Fugging
5
5
North
5
20
Salvador
2
4
Seattle
4
11
South
2
12
Tokyo
3
DB Fiddle
I'm using Oracle.
I have two tables. One contains users and the other is an access log of sorts. I need to list all users whose latest log entry appears in the log within a specified time frame including the timestamp of the latest entry. A single user can have several entries in the log.
Here are simplified versions of the tables:
Users
|----------------------------------|
| userid| username | name |
|----------------------------------|
| 1 | josm | John Smith |
| 2 | lajo | Laura Jones |
| 3 | miwi | Mike Williams |
| 4 | subo | Susan Brown |
| 5 | peda | Peter Davis |
| 6 | jami | Jane Miller |
|----------------------------------|
Log
|----------------------------------|
| userid| action | timestamp |
|----------------------------------|
| 3 | a | 20-01-2020 |
| 2 | v | 19-11-2019 |
| 2 | y | 02-11-2019 |
| 4 | b | 15-09-2019 |
| 1 | a | 23-05-2019 |
| 6 | y | 22-05-2019 |
| 3 | b | 16-04-2019 |
| 2 | a | 07-01-2019 |
| 5 | v | 18-11-2018 |
| 6 | a | 12-09-2018 |
|----------------------------------|
Desired result if the time frame is set to last six months:
|---------------------------------------|
| username | name | timestamp |
|--------------------------|------------|
| miwi | Mike Williams | 20-01-2020 |
| lajo | Laura Jones | 19-11-2019 |
| subo | Susan Brown | 15-09-2019 |
|---------------------------------------|
Any help will be greatly appreciated.
You can use aggregation:
select u.username, u.userid, max(l.timestamp)
from logs l join
users u
on l.userid = u.userid
group by u.username, u.userid
having max(l.timestamp) >= add_months(sysdate, -6)
I Have two tables in a sql server database.
Here's my First table,Table1
+------------+------------------+----------------+
| Project ID | Project Manager | Approved Hours |
+------------+------------------+----------------+
| 1 | Mr.A | 120 |
| 2 | Mr.B | 100 |
+------------+------------------+----------------+
Here's my Second Table,Table 2
+-----------+-----------------+-----------+----------+---------------+
| ProjectID | Project Manager | Personnel | Week No. | Working Hours |
+-----------+-----------------+-----------+----------+---------------+
| 1 | Mr.A | Tom | 1 | 20 |
| 1 | Mr.A | Tom | 2 | 20 |
| 1 | Mr.A | Tom | 3 | 10 |
| 1 | Mr.A | Harry | 1 | 20 |
| 1 | Mr.A | Harry | 2 | 20 |
| 1 | Mr.A | Harry | 3 | 20 |
| 2 | Mr.B | Tom | 1 | 20 |
| 2 | Mr.B | Tom | 2 | 10 |
| 2 | Mr.B | Tom | 3 | 20 |
| 2 | Mr.B | Harry | 1 | 20 |
| 2 | Mr.B | Harry | 2 | 15 |
+-----------+-----------------+-----------+----------+---------------+
I would like to create a ssrs report that looks like this.I'm using the 2012 version.
Actual Hours being the sum of working Hours for each Project.
+------------+-----------------+----------------+--------------+
| Project ID | Project Manager | Approved Hours | Actual Hours |
+------------+-----------------+----------------+--------------+
| 1 | Mr.A | 120 | 110 |
| 2 | Mr.B | 100 | 85 |
+------------+-----------------+----------------+--------------+
I'm kind of new to SQL, Can I get this done with a single query.
As #jarlh Suggest simply do INNER JOIN & group by as below :
SELECT T.[Project ID],
T.[Project Manager],
T.[Approved Hours],
SUM(T1.[Working Hours]) [Actual Hours]
FROM Table1 T
INNER JOIN Table2 T1 ON T.[Project ID] = T1.[Project ID]
GROUP BY T.[Project ID],
T.[Project Manager],
T.[Approved Hours];
Result :
+------------+-----------------+----------------+--------------+
| Project ID | Project Manager | Approved Hours | Actual Hours |
+------------+-----------------+----------------+--------------+
| 1 | Mr.A | 120 | 110 |
| 2 | Mr.B | 100 | 85 |
+------------+-----------------+----------------+--------------+
I have a reference table as such in Sheet2 of my workbook
|Score 1| | |Score 2 | | |
----------------------------------------------------------
| name | min | max | target | min | max | target |
----------------------------------------------------------
| jeff | 30 | 40 | 35 | 45 | 55 | 50 |
----------------------------------------------------------
| steve | 35 | 45 | 40 | 45 | 65 | 55 |
then in Sheet1 I have a list of scores for each name as such
| jeff | 1 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 2 | | | | steve | 2 | | |
------------------------------------------------------------
| jeff | 2 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 3 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 1 | | | | steve | 2 | | |
------------------------------------------------------------
I am aware of simple lookups and offsetting values but I can't think of a way to do multiple references on different levels... Is there a way to in Sheet1 next to the scores have a function that looks up the score, then who the score is for, and then prints the corresponding min max and target values for that person with that score.
So if it sees 1 and then jeff, it returns 30 | 40 | 35 in the next 3 boxes. I would do this manually but the list is very long and is populated daily by an existing macro.
Use VLOOKUP with the name (jeff) and take the index (1) to calculate the column to take.
I have the following MySQL table:
+---------+------------+------+--------+------+---------+------------+-------+---------+----------+------------+------------+
| Version | Yr_Varient | FY | Period | CoA | Company | Item | Mvt | Ptnr_Co | Investee | GC | LC |
+---------+------------+------+--------+------+---------+------------+-------+---------+----------+------------+------------+
| 201 | 1 | 2010 | 1 | 11 | 23 | 1110105000 | 60200 | | | 450000 | 450000 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 2110300000 | 60200 | | | -520000 | -520000 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 1220221600 | | | | 78080 | 78080 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 2130323000 | | | | 50000 | 50000 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 2130322000 | | | | -58080 | -58080 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 3100505000 | | | | -275000 | -275000 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 3200652500 | | | | 216920 | 216920 |
| 201 | 1 | 2010 | 1 | 11 | 23 | 3900000000 | | | | 58080 | 58080 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 1110105000 | 60200 | | | 376000 | 376000 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 2110300000 | 60200 | | | -545000 | -545000 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 1220221600 | | | | 452250 | 452250 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 2130323000 | | | | -165000 | -165000 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 2130322000 | | | | -118250 | -118250 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 3100505000 | | | | -937750 | -937750 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 3200652500 | | | | 819500 | 819500 |
| 201 | 1 | 2010 | 1 | 11 | 26 | 3900000000 | | | | 118250 | 118250 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 1110105000 | 60200 | | | 777000 | 777000 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 2110308000 | 60200 | 43 | | -255000 | -255000 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 2130321500 | | | | 180000 | 180000 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 2130322000 | | | | -77000 | -77000 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 2310407001 | | 1 | | -625000 | -625000 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 3100505000 | | | | -2502500 | -2502500 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 3200652500 | | | | 2425500 | 2425500 |
| 201 | 1 | 2010 | 1 | 11 | 37 | 3900000000 | | | | 77000 | 77000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1110105000 | 60200 | | | 2600000 | 2600000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1140161000 | 60200 | | 23 | 430000 | 430000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1140161000 | 60200 | | 26 | 505556 | 505556 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1140160000 | 60200 | 37 | | 255000 | 255000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1160163000 | 60200 | 99999 | 48 | 49428895 | 49428895 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1160163000 | 60200 | 99999 | 49 | 188260175 | 188260175 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 2310405500 | | | | -237689070 | -237689070 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 2110300000 | 60200 | | | -1000 | -1000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 2110300500 | 60200 | | | -3999000 | -3999000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 1220221600 | | | | 1571112 | 1571112 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 2130321500 | | | | -805556 | -805556 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 2130322000 | | | | -556112 | -556112 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 3100505000 | | | | -836000 | -836000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 3200652500 | | | | 781000 | 781000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 3300715700 | | 99999 | 32 | -440000 | -440000 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 3300715700 | | 99999 | 26 | -61112 | -61112 |
| 201 | 1 | 2010 | 1 | 11 | 43 | 3900000000 | | | | 556112 | 556112 |
+---------+------------+------+--------+------+---------+------------+-------+---------+----------+------------+------------+
I need to take all rows with Mvt = 60200 and multiply every GC and LC record in that row by 1.1 and add a new row containing the changes back into the same table with FY set to 2011.
How can I do all this in 1 statement?
Is it even possible to do all this in 1 statement (I know very little about SQL)?
Can this be done in standard SQL as the database will be ported to another Database Server?
I don't know which server it will be.
In standard SQL (there may be better ways in vendor-specific implementations but I tend to prefer standard stuff where possible):
insert into mytable (
Version, Yr_Varient, Period, CoA, Company, Item, Mvt, Ptnr_Co, Investee,
FY, GC, LC
) select
Version, Yr_Varient, Period, CoA, Company, Item, Mvt, Ptnr_Co, Investee,
2011, GC*1.1, LC*1.1
from mytable
where Mvt = 60200
-- and FY = 2010
You may also want to limit your select statement a little more depending on the results of your testing, such as uncommenting the and FY = 2010 line above to stop copying all your 2009 and 2008 data as well, if any. I asume you only wanted to carry forward the previous year's stuff with a 10% increase on GC and LC.
The way this works is to run the select which gives modified data for FY, GC and LC as per your request, and pump all those rows back into the insert.
insert into mytable (
Version,Yr_Varient,FY,Period,CoA,Company,Item,Mvt,Ptnr_Co,Investee,GC,LC)
SELECT Version ,Yr_Varient,"2011" as FY, Period, CoA, Company , Item , Mvt ,Ptnr_Co , Investee , GC*1.1 as GC, LC*1.1 as LC FROM <table Name>
WHERE Mvt = 60200
INSERT INTO _table_
(Version,
Yr_Varient,
FY,
Period,
CoA,
Company,
Item,
Mvt,
Ptnr_Co,
Investee,
GC,
LC)
SELECT
Version,
Yr_Varient,
2011,
Period,
CoA,
Company,
Item,
Mvt,
Ptnr_Co,
Investee,
GC * 1.1,
LC * 1.1
FROM
_table_
WHERE
Mvt = 60200
AND FY <> 2011
This statement should work in any SQL-Database.
Edit: Too slow