I have two tables:
table1
emp empname mangr mangrname
1 emp1 3 emp3
2 emp2 3 emp3
3 emp3 6 emp6
4 emp4 5 emp5
5 emp5 7 emp7
table 2
emp mngr score
1 3 18
2 3 19
3 6 15
4 5 18
5 7 15
1 6 18
2 6 16
3 7 18
4 3 19
output will be
empname mangrname score_by_mangr mangr_of_mangr score_by_mangr_of_mangr avg_score_by_others
I have been trying using the below query, but its going no where!!!
SELECT UD.emp, UD.empname, UD.mangrname,
(SELECT score FROM TABLE2 WHERE mngr =(SELECT DISTINCT mangr FROM TABLE1 WHERE mangrname=UD.mangrname) ),
AVG(VAL(US.score))
FROM table2 US, table1 UD
WHERE US.EMP_ID=UD.EMP_ID
AND US.mangr=UD.mangr
GROUP BY UD.emp, UD.empname, UD.mangrname;
Related
I am trying to copy value from our old db to new db where there is a change in the table structure.
Below is the structure of the table
Table1
Table1ID, WheelCount, BlindCount, OtherCount
For eg values of table 1 is like below
Table1ID, 1,2,5
Table1 is now changed to TableNew with the below
TableNewID, DisableID , Quantity.
So the value should be
TableNewID1, 1,1 here 1= WheelCount from table1
TableNewID2, 2,2 here 2= BlindCount
TableNewID3, 3,5 here 5= OtherCount
how to write a cursor to transform table1 value to the new table tableNew structure.
Table1
Table1ID WheelCount BlindCount OtherCount
1 1 2 5
2 8 10 15
A master table defined to map disableid
DisableID Type
1 wheelCount
2 blindcount
3 otherCount
Expected structure
ID **Table1ID** **DISABLEID** QUANTITY
1 1 1 1
2 1 2 2
3 1 3 5
4 2 1 8
5 2 2 10
6 2 3 15
The simplest is a UNION ALL for each column you want to turn into a row.
insert into tablenew
select table1id,1,wheelcount from table1
union all
select table1id,2,blindcount from table1
union all
select table1id,3,othercount from table1
There are other, sleeker methods for avoiding multiple passes on the first table, in case it's huge.
This is how I understood it.
Current table contents:
SQL> SELECT * FROM table1;
TABLE1ID WHEELCOUNT BLINDCOUNT OTHERCOUNT
---------- ---------- ---------- ----------
1 1 2 5
2 8 10 15
Prepare new table:
SQL> CREATE TABLE tablenew
2 (
3 id NUMBER,
4 table1id NUMBER,
5 disableid NUMBER,
6 quantity NUMBER
7 );
Table created.
Sequence (will be used to populate tablenew.id column):
SQL> CREATE SEQUENCE seq_dis;
Sequence created.
Trigger (which actually populates tablenew.id):
SQL> CREATE OR REPLACE TRIGGER trg_bi_tn
2 BEFORE INSERT
3 ON tablenew
4 FOR EACH ROW
5 BEGIN
6 :new.id := seq_dis.NEXTVAL;
7 END;
8 /
Trigger created.
Copy data:
SQL> INSERT INTO tablenew (table1id, disableid, quantity)
2 SELECT table1id, 1 disableid, wheelcount AS quantity FROM table1
3 UNION ALL
4 SELECT table1id, 2 disableid, blindcount AS quantity FROM table1
5 UNION ALL
6 SELECT table1id, 3 disableid, othercount AS quantity FROM table1;
6 rows created.
Result:
SQL> SELECT *
2 FROM tablenew
3 ORDER BY table1id, disableid;
ID TABLE1ID DISABLEID QUANTITY
---------- ---------- ---------- ----------
1 1 1 1
3 1 2 2
5 1 3 5
2 2 1 8
4 2 2 10
6 2 3 15
6 rows selected.
For each company entry in a table Company, I want to create a random number of rows between 50 and 250 in table Employee in PL/SQL.
Here's one option, based on data in Scott's sample schema.
Departments (that's your company):
SQL> SELECT * FROM dept;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
Target table:
SQL> CREATE TABLE employee
2 (
3 deptno NUMBER,
4 empno NUMBER PRIMARY KEY,
5 ename VARCHAR2 (10),
6 salary NUMBER
7 );
Table created.
Sequence (for primary key values):
SQL> CREATE SEQUENCE seq_e;
Sequence created.
Here's the procedure: for each department, it creates L_ROWS number of rows (line #8) (I restricted it to a number between 1 and 5; your boundaries would be 50 and 250). It also creates random names (line #16) and salaries (line #17):
SQL> DECLARE
2 l_rows NUMBER;
3 BEGIN
4 DELETE FROM employee;
5
6 FOR cur_d IN (SELECT deptno FROM dept)
7 LOOP
8 l_rows := ROUND (DBMS_RANDOM.VALUE (1, 5));
9
10 INSERT INTO employee (deptno,
11 empno,
12 ename,
13 salary)
14 SELECT cur_d.deptno,
15 seq_e.NEXTVAL,
16 DBMS_RANDOM.string ('x', 7),
17 ROUND (DBMS_RANDOM.VALUE (100, 900))
18 FROM DUAL
19 CONNECT BY LEVEL <= l_rows;
20 END LOOP;
21 END;
22 /
PL/SQL procedure successfully completed.
Result:
SQL> SELECT *
2 FROM employee
3 ORDER BY deptno, empno;
DEPTNO EMPNO ENAME SALARY
---------- ---------- ---------- ----------
10 1 ZMO4RFN 830
10 2 AEXL34I 589
10 3 SI6X38Z 191
10 4 59EWI42 397
20 5 DBAMQDA 559
20 6 79X78JV 491
30 7 56ITU5V 178
30 8 09KPAIS 297
30 9 VQUVWDP 446
40 10 AHJZNVJ 182
40 11 0XWI3GC 553
40 12 7GNTCG4 629
40 13 23G871Z 480
13 rows selected.
SQL>
Adapting my answer to this question:
INSERT INTO employees (id, first_name, last_name, department_id)
SELECT employees__id__seq.NEXTVAL,
CASE FLOOR(DBMS_RANDOM.VALUE(1,6))
WHEN 1 THEN 'Faith'
WHEN 2 THEN 'Tom'
WHEN 3 THEN 'Anna'
WHEN 4 THEN 'Lisa'
WHEN 5 THEN 'Andy'
END,
CASE FLOOR(DBMS_RANDOM.VALUE(1,6))
WHEN 1 THEN 'Andrews'
WHEN 2 THEN 'Thorton'
WHEN 3 THEN 'Smith'
WHEN 4 THEN 'Jones'
WHEN 5 THEN 'Beirs'
END,
d.id
FROM ( SELECT id,
FLOOR(DBMS_RANDOM.VALUE(50,251)) AS num_employees
FROM departments
ORDER BY ROWNUM -- Materialize the sub-query so the random values are individually
-- generated.
) d
CROSS JOIN LATERAL (
SELECT LEVEL
FROM DUAL
CONNECT BY LEVEL <= d.num_employees
);
fiddle
Example dB : https://dbfiddle.uk/?rdbms=oracle_11.2&fiddle=49af209811bce88aa67b42387f1bb5f6
I'd like to add insert this line
1002 9 1 UNKNOWN
Because of the line exists
1002 5 1 JIM
I was thinking about something like
select codeclient from STATS_CLIENT_TEST where CODEAXESTAT=5
and insert codeclient, 9,1,UNKNOWN.
but not sure how to do it? And simple query or a PL/SQL?
What's the best way to get it?
Thanks
Use an INSERT .. SELECT statement with a PARTITIONed outer join:
INSERT INTO stats_client_test (
codeclient, codeaxestat, codeelementstat, valeuraxestatistiqueclient
)
SELECT cc.codeclient,
s.codeaxestat,
s.codeelementstat,
'UNKNOWN'
FROM (SELECT DISTINCT codeclient FROM stats_client_test) cc
LEFT OUTER JOIN stats_client_test s
PARTITION BY (s.codeaxestat, s.codeelementstat)
ON (s.codeclient = cc.codeclient)
WHERE s.rowid IS NULL;
or a MERGE statement:
MERGE INTO stats_client_test dst
USING (
SELECT cc.codeclient,
s.codeaxestat,
s.codeelementstat,
s.ROWID AS rid
FROM (SELECT DISTINCT codeclient FROM stats_client_test) cc
LEFT OUTER JOIN stats_client_test s
PARTITION BY (s.codeaxestat, s.codeelementstat)
ON (s.codeclient = cc.codeclient)
) src
ON (dst.ROWID = src.rid)
WHEN NOT MATCHED THEN
INSERT (codeclient, codeaxestat, codeelementstat, valeuraxestatistiqueclient)
VALUES (src.codeclient, src.codeaxestat, src.codeelementstat, 'UNKNOWN');
db<>fiddle here
Here's one option: using the MINUS set operator, find missing codeclient values and then insert appropriate row(s).
Before:
SQL> select * From stats_client_Test order by codeaxestat, codeclient;
CODECLIENT CODEAXESTAT CODEELEMENTSTAT VALEURAXESTATISTIQUECLIENT
-------------------- ----------- --------------- ----------------------------------------
1000 5 1 JOHN
1001 5 1 ALICE
1002 5 1 JIM
1003 5 1 BOB
1000 9 1 MAN
1001 9 1 WOMAN
1002 9 1 unknown
1003 9 1 MAN
8 rows selected.
Query:
SQL> insert into stats_client_test
2 (codeclient, codeaxestat, codeelementstat, VALEURAXESTATISTIQUECLIENT)
3 select x.codeclient, 9, 1, 'unknown'
4 from (select codeclient from stats_client_Test
5 where codeaxestat = 5
6 minus
7 select codeclient from stats_client_Test
8 where codeaxestat = 9
9 ) x;
0 rows created.
After:
SQL> select * From stats_client_Test order by codeaxestat, codeclient;
CODECLIENT CODEAXESTAT CODEELEMENTSTAT VALEURAXESTATISTIQUECLIENT
-------------------- ----------- --------------- ----------------------------------------
1000 5 1 JOHN
1001 5 1 ALICE
1002 5 1 JIM
1003 5 1 BOB
1000 9 1 MAN
1001 9 1 WOMAN
1002 9 1 unknown --> here it is
1003 9 1 MAN
8 rows selected.
SQL>
1st time posting here, so sorry if I messed something up.
I'm trying to figure out how many units pre day are being used across multiple products given a date range.
So if I had a table like this:
Product_id
Start_date
End_date
Units
1
07/07/2021
07/09/2021
2
2
07/08/2021
07/10/2021
4
3
07/12/2021
07/12/2021
7
The output should be something like:
Date
Units
07/07/2021
2
07/08/2021
6
07/09/2021
6
07/10/2021
4
07/11/2021
0
07/12/2021
7
Here's one option; read comments within code.
SQL> with
2 calendar as
3 -- all dates between the first START_DATE and the last END_DATE.
4 -- You need it for outer join with data you have.
5 (select mindat + level - 1 as datum
6 from (select min(start_date) mindat,
7 max(end_date) maxdat
8 from test
9 )
10 connect by level <= maxdat - mindat + 1
11 )
12 -- final query
13 select c.datum,
14 nvl(sum(t.units), 0) units
15 from calendar c left join test t on c.datum between t.start_date and t.end_date
16 group by c.datum
17 order by c.datum;
DATUM UNITS
---------- ----------
07/07/2021 2
07/08/2021 6
07/09/2021 6
07/10/2021 4
07/11/2021 0
07/12/2021 7
6 rows selected.
SQL>
I am new to the oracle database and I am trying to use PIVOT to convert rows into columns. I have following tables..
table 1
solid solname
--------------
1 xxxxxx
2 yyyyyyy
table2
id name abbrv
----------------------------------
1 test db tdb
2 Prdocuiton db pdb
table3
id solId
-------------
1 1
1 2
1 3
1 4
1 5
1 7
1 8
1 9
1 22
1 23
1 24
1 25
2 26
2 27
1 28
1 29
1 32
1 33
1 34
1 35
1 36
1 37
3 38
1 39
1 40
1 43
1 44
table 3 is mapper table for table 1 and table 3.
I need to create a view with the columns in table2 and extra column for each solname's. So the view looks like
id name abbrv xxxxxxx yyyyyyy
--------------------------------------------------
So is there a way to do this using PIVOT in oracle database?
For Dynamic SQL Pivoting you need to do something similar :
create or replace view sol_view
as
select
t1.solname,
t2.name,
count(t3.abbrv),
from
table1 t1,
table2 t2,
table3 t3
where
t1.solid = t3.solid
and t2.id = t3.id
group by
t1.solname,
t3.name
select * from table( pivot('select * from sol_view') )
Caveat: I have never tried this but understood the logic from here:
http://technology.amis.nl/2006/05/24/dynamic-sql-pivoting-stealing-antons-thunder/
For Static SQL Pivoting, try something roughly along these lines. Never tried or tested though:
with pivot_data as (
select t1.solname, t2.name, t3.abbrv
from table1 t1, table2 t2, table3 t3
where t1.solid = t3.solid
and t2.id = t3.id
)
select *
from pivot_data
pivot (
count(abbrv)
for solname
in ('xxxxxx','yyyyyyy')
);
It was not really defined what you want to store in the xxxx and yyyy columns, maybe 1/blank, Y/N, ... ? However, your query might look close to something like this:
SELECT * FROM (
SELECT *
FROM table3 t3
JOIN table2 t2 USING (id)
JOIN table1 t1 USING (solid)
) PIVOT (
COUNT(*) FOR (solname) IN (
('xxx') AS "XXX",
('yyy') AS "YYY"
)
)
You can find more information and additional references on My Blog
TableName - **tblItem**
Id ItemName RecipeName Quantity
1 Sugar mutter paneer 200
2 Tea mutter paneer 100
3 Tomato mutter paneer 500
4 Onion mutter paneer 300
5 Ginger mutter paneer 300
6 Capsicum mutter paneer 300
7 Sugar mutter paneer 200
8 Tea mutter paneer 100
9 Onion mutter paneer 500
10 Sugar mutter paneer 200
V_VALUES varchar2(4000);
sql_query varchar2(4000);
SELECT
LISTAGG(''''||ITEMNAME||'''',',')WITHIN GROUP (ORDER BY ITEMNAME)as ITEMNAME
INTO V_LIST
FROM(SELECT DISTINCT ITEMNAME FROM tblItem);
sql_query : = 'SELECT * FROM (
SELECT ItemName,RecipeName,Sum(Quantity) as Quantity from tblItem group by ItemName,RecipeName)
PIVOT (
sum(Quantity) for ItemName in (' ||V_LIST|| ')
)';
OPEN p_cursor
FOR sql_query;