I have two Table
one is student_record_temp
id
name
roll
1
Shadman
2
2
Adnan
3
Now I want to copy the row in student_record where the name is shadman and it returns both student_record_temp and student_record id
I am trying to solve this in
INSERT INTO student_record (name,rool) select name,roll from student_record_temp
FROM student_record_temp WHERE name='shadman' RETURNING student_record.id,student_record_temp.id
ERROR: missing FROM-clause entry for table "student_record_temp"
LINE 8: student_record.id,student_record_temp.id
but I got an error and how I can solve this.
To copy a table with partial data from an existing table
CREATE TABLE new_table AS
SELECT
*
FROM
existing_table
WHERE
condition;
The condition in the WHERE clause of the query defines which rows of the existing table will be copied to the new table
or you can use this:
INSERT INTO TABLE1 (id, col_1, col_2, col_3)
SELECT id, 'data1', 'data2', 'data3'
FROM TABLE2
WHERE col_a = 'something';
You can't be returning data from select in the insert query. You can use two scenarios:
second scenario
If name column data from student_record_temp table is unique. you can use join in returning query:
insert into student_record as sr (name, roll)
select srt.name, srt.roll
from student_record_temp srt
where name = 'shadman'
returning sr.id, (select id from student_record_temp r_srt where r_srt.name = sr.name);
first scenario
If name column data from student_record_temp table is not unique. you have to create temp unique field and use from that
with select_data as (
select srt.id, srt.name, srt.roll, row_number() OVER (ORDER BY id) AS rn
from student_record_temp srt
where name = 'shadman'),
add_data as (
insert into student_record as sr (name, roll)
select sd.name, sd.roll
from select_data sd
order by sd.id
returning sr.id)
select ad.id as insert_id,
sd.id as select_id
from (select id, row_number() over (order by id) as rn from add_data) ad
inner join select_data sd on ad.rn = sd.rn;
Related
I’ve a table that looks like this:
Table A
Version,id
5060586,22285
5074515,22701
5074515,22285
7242751,22701
7242751,22285
I want to generate a new key called groupId that is inserted as my example below:
Table A
Version,id,groupId
5060586,22285,1
5074515,22701,2
5074515,22285,2
7242751,22701,2
7242751,22285,2
I want the groupId to be the same as long as the id's are the same in the different versions. So for example version 5074515 and 7242751 has the same id's so therefor the groupId will be the same. If all the id's aren't the same a new groupId should be added as it has in version 5060586.
How can i solve this specific problem in SQL oracle?
One approach is to create a unique value representing the set of ids in each version, then assign a groupid to the unique values of that, then join back to the original data.
INSERT ALL
INTO t (version,id) VALUES (5060586,22285)
INTO t (version,id) VALUES (5074515,22701)
INTO t (version,id) VALUES (5074515,22285)
INTO t (version,id) VALUES (7242751,22701)
INTO t (version,id) VALUES (7242751,22285)
SELECT 1 FROM dual;
WITH groups
AS
(
SELECT version
, LISTAGG(id,',') WITHIN GROUP (ORDER BY id) AS group_text
FROM t
GROUP BY version
),
groupids
AS
(
SELECT group_text, ROW_NUMBER() OVER (ORDER BY group_text) AS groupid
FROM groups
GROUP BY group_text
)
SELECT t.*, groupids.groupid
FROM t
INNER JOIN groups ON t.version = groups.version
INNER JOIN groupids ON groups.group_text = groupids.group_text;
dbfiddle.uk
You can use:
UPDATE tableA t
SET group_id = ( SELECT COUNT(DISTINCT id)
FROM TableA x
WHERE x.Version <= t.version );
Which, for the sample data:
CREATE TABLE TableA (
Version NUMBER,
id NUMBER,
group_id NUMBER
);
INSERT INTO TableA (Version, id)
SELECT 5060586,22285 FROM DUAL UNION ALL
SELECT 5074515,22701 FROM DUAL UNION ALL
SELECT 5074515,22285 FROM DUAL UNION ALL
SELECT 7242751,22701 FROM DUAL UNION ALL
SELECT 7242751,22285 FROM DUAL;
Then, after the update:
SELECT * FROM tablea;
Outputs:
VERSION
ID
GROUP_ID
5060586
22285
1
5074515
22701
2
5074515
22285
2
7242751
22701
2
7242751
22285
2
db<>fiddle here
I have two tables having seq_no column:
select max(SEQ_NO) from final_prices;
select max(SEQ_NO) from price_loads;
I want to insert into a third table: archive_load from final_prices table on the condition that if the MAX(SEQ_NO) in final_prices exists in price_loads table
I am writing this query:
insert
into xx_label_prices_arc_temp
(select * from xx_label_final_prices where max (seq_no) in (select max(seq_no) from xx_label_price_loads));
It gives me the error:
group function is not allowed here
How can I insert based on this logic?
You can do:
insert into xx_label_prices_arc_temp
select *
from final_prices
where exists (
select 1 from price_loads where seq_no = (select max(seq_no) from final_prices)
)
Tables: I have 3 tables
They are cust, new_cust, old_cust
all of them have 3 columns, they are id, username, name
each of them have possibilities to have same data as the others.
I would like to make "whole" table that consisting all of them but only the uniques.
I've Tried
Creating a dummy table
I've tried to create the dummy table called "Temp" table by
select *
into Temp
from cust
insert all table to dummy
Then I insert all of them into they Temp table
insert into temp
select * from new_cust
insert into temp
select * from old_cust
taking uniques using distinct
After they all merged I'm using distinct to only take the unique id value
select distinct(id), username, fullname
into Whole
from temp
it did decreasing some rows
Result
But after I move it to whole table I would like to put primary key on id but I got the message that there are some duplicate values. Is there any other way?
I am guessing that you want unique ids. And you want these prioritized by the tables in some order. If so, you can do this with union all and row_number():
select id, username, name
from (select c.*,
row_number() over (partition by id order by priority) as seqnum
from ((select id, username, name, 1 as priority
from new_cust
) union all
(select id, username, name, 2 as priority
from cust
) union all
(select id, username, name, 3 as priority
from old_cust
)
) c
) c
where seqnum = 1;
Try this:
insert into temp
select * from new_cust
UNION
select * from old_cust
Union will avoid the duplicate entries and you can then create a primary key on ID column
Try this below query...
WITH cte as (
SELECT id, username, NAME,
ROW_NUMBER() OVER (PARTITION BY t1.id ORDER BY t1.username, t1.name ) AS rn
FROM cust t1
LEFT JOIN new_cust t2 ON t1.Id = t2.Id
LEFT JOIN old_cust t3 ON t2.Id = t3.Id
)
SELECT id, username, NAME
FROM cte
WHERE rn = 1
Note:-
Put all the query inside a CTE(Common table expression)
with a new column(rn) that you will use to filter the results.
This new Column will produce ROW_NUMBER()....PARTITION BY username,name.....
But after I move it to whole table I would like to put primary key on
id but I got the message that there are some duplicate values.?
That's because You are trying to insert ID value from each of the tables to Whole table.
Just insert username and name and skip ID. ID is IDENTITY and it MUST be unique.
Run this on Your current Whole table to see if You have duplicated Id's:
select COUNT(ID), username
from whole
GROUP BY username
HAVING COUNT(ID) > 1
To get unique customers recreate table Whole and make ID col IDENTITY:
IF OBJECT_ID ('dbo.Whole') IS NOT NULL DROP TABLE dbo.Whole;
CREATE TABLE Whole (ID INT NOT NULL IDENTITY(1,1), Name varchar(max), Username varchar(max))
Insert values into Whole table:
INSERT INTO Whole
SELECT Name, Username FROM cust
UNION
SELECT Name, Username FROM new_cust
UNION
SELECT Name, Username FROM old_cust
Make ID col PK.
What does Unique mean for your row ?
If it is only the username, and you don't care about keeping the old ID values,
this will favor the new_cust data over the old_cust data.
SELECT
ID = ROW_NUMBER() OVER (ORDER BY all_temp.username)
, all_temp.*
INTO dbo.Temp
FROM
(
SELECT nc.username, nc.[name] FROM new_cust AS nc
UNION
SELECT oc.username, oc.[name]
FROM old_cust AS oc
WHERE oc.username NOT IN (SELECT nc1.username FROM new_cust AS nc1) --remove the where part if needed
) AS all_temp
ALTER TABLE dbo.Temp ALTER COLUMN ID INTEGER NOT NULL
ALTER TABLE dbo.Temp ADD PRIMARY KEY (ID)
If by Unique you mean both the username and name then just remove the where part in the union
I have a query having cte with number of columns, I want to insert a record if ID from the results of that query does not exist in table that I am inserting, or if the ID exists I want to update data using that ID.
So far I have tried this:
WITH cte_base as(
SELECT DISTINCT ID, statusID
FROM testtable
)
SELECT *
FROM cte_base
IF EXISTS(SELECT * FROM Newtable WHERE EXISTS (SELECT ID FROM cte_base))
UPDATE newtable
SET statusID = 2
WHERE Newtable.ID = cte_base.ID
ELSE
INSERT INTO newtable(ID, statusID)
SELECT ID, statusID
FROM cte_base
WHERE Newtable.ID <> cte_base.ID
I have to run this query against live data, hence I would like to know if my logic is correct.
Basic merge example based on your provided code.
MERGE INTO NewTable AS T
USING
(
SELECT DISTINCT ID,statusID
FROM testtable
) AS S
ON S.ID = T.ID
WHEN MATCHED THEN SET
T.StatusID = 2
WHEN NOT MATCHED INSERT (ID,statusID)
VALUES (S.ID,S.statusID)
;
What are you trying to do?
EXISTS (SELECT ID FROM cte_base)
If cte_base has any records that will be true every time
That is no different than
SELECT DISTINCT ID, statusID
FROM testtable
And will be true every time if there are any records in testtable
I'm trying to get maximum repeat of integer in table I tried many ways but could not make it work. The result I'm looking for is as:
"james";"108"
As this 108 when I concat of two fields loca+locb repeated two times but others did not I try below sqlfiddle link with sample table structure and the query I tried... sqlfiddle link
Query I tried is :
select * from (
select name,CONCAT(loca,locb),loca,locb
, row_number() over (partition by CONCAT(loca,locb) order by CONCAT(loca,locb) ) as att
from Table1
) tt
where att=1
please click here so you can see complete sample table and query I tried.
Edite: adding complete table structure and data:
CREATE TABLE Table1
(name varchar(50),loca int,locb int)
;
insert into Table1 values ('james',100,2);
insert into Table1 values ('james',100,3);
insert into Table1 values ('james',10,8);
insert into Table1 values ('james',10,8);
insert into Table1 values ('james',10,7);
insert into Table1 values ('james',10,6);
insert into Table1 values ('james',0,7);
insert into Table1 values ('james',10,0);
insert into Table1 values ('james',10);
insert into Table1 values ('james',10);
and what I'm looking for is to get (james,108) as that value is repeated two time in entire data, there is repetion of (james,10) but that have null value of loca so Zero value and Null value is to be ignored only those to be considered that have value in both(loca,locb).
SQL Fiddle
select distinct on (name) *
from (
select name, loca, locb, count(*) as total
from Table1
where loca is not null and locb is not null
group by 1,2,3
) s
order by name, total desc
WITH concat AS (
-- get concat values
SELECT name,concat(loca,locb) as merged
FROM table1 t1
WHERE t1.locb NOTNULL
AND t1.loca NOTNULL
), concat_count AS (
-- calculate count for concat values
SELECT name,merged,count(*) OVER (PARTITION BY name,merged) as merged_count
FROM concat
)
SELECT cc.name,cc.merged
FROM concat_count cc
WHERE cc.merged_count = (SELECT max(merged_count) FROM concat_count)
GROUP BY cc.name,cc.merged;
SqlFiddleDemo
select name,
newvalue
from (
select name,
CONCAT(loca,locb) newvalue,
COUNT(CONCAT(loca,locb)) as total,
row_number() over (order by COUNT(CONCAT(loca,locb)) desc) as att
from Table1
where loca is not null
and locb is not null
GROUP BY name, CONCAT(loca,locb)
) tt
where att=1