I have two tables with n of columns from Col1 to Col30
Table 1.
Templateid Col1 Col2 Col3 Col4 ...
95 2019-05-28 1234 test123 123456
Table 2.
Templateid DisplayName ColumnName
95 date col1
95 rank col2
95 purpose col3
95 sign col4
Expected Results.
Col1Name Col1Value Col2Name Col2Value Col3Name Col3Value ....
date 2019-05-28 rank 1234 purpose test123
This is a crude way of doing it and if you do not know the number of columns in each table you would need to use dynamic sql to enumerate them out but for the purposes of this example I have assumed you do know the number of columns and the names you want to populate.
The union query allows you to pre-populate the desired column names using the col1 syntax, then the pivot allows you to match up the displaynames and the display values. A case statement is required to ensure the correct values are shown and you do need to populate your derived column names for the pivot query but you do get the desired outcome this way.
declare #table1 table (
Templateid int,
Col1 date,
col2 int,
col3 nvarchar(10),
col4 int
);
insert into #table1 (Templateid, col1, col2, col3, col4)
values
(95, '2019-05-28', '1234', 'test123', '123456');
declare #table2 table (
Templateid int,
Displayname nvarchar(10),
ColumnName nvarchar(10)
);
insert into #table2 (Templateid, Displayname, ColumnName)
values
(95, 'date', 'col1'),
(95, 'rank', 'col2'),
(95, 'purpose', 'col3'),
(95, 'sign', 'col4');
select * from
(
select columnname+'Name' as columnname, Displayname
from #table2 t2
union
select columnname+'Value', case when columnname='col1' then cast(col1 as nvarchar(15))
when columnname='col2' then cast(col2 as nvarchar(15))
when columnname='col3' then cast(col3 as nvarchar(15))
when columnname='col4' then cast(col4 as nvarchar(15)) end
from #table1 t1 inner join #table2 t2 on t1.Templateid=t2.Templateid) src
pivot
(max(displayname) for columnname in ([col1Name],[col1Value], [col2Name],[col2Value], [col3Name],[col3Value], [col4Name],[col4Value])) piv;
Related
I have a single row query returning data in this format:
Col1 Col2 Col3 Col4
-----------------------------
1425 3454 2345 3243
I want it to display it in this format:
Col1 | 1425
Col2 | 3454
Col3 | 2345
Col4 | 3243
How can I do it?
I am avoiding to use UNION method since the above table is extracted from a query and for each <table_name> I would have to paste the table query which will make the process slow.
If the number of fields per table is always constant, then it might work like this.
DECLARE #Table TABLE(
[Col1] int,
[Col2] int,
[Col3] int,
[Col4] int
)
INSERT INTO #Table VALUES(1425, 3454, 2345, 3243); -- some Test data
SELECT * FROM #Table; -- row
SELECT
p.[Columns],
p.[Value]
FROM (
SELECT
[Col1],
[Col2],
[Col3],
[Col4]
FROM #Table
) x
UNPIVOT(
[Value] FOR [Columns] IN ([Col1],[Col2],[Col3],[Col4]) --
) AS P;
You can cross join your query with the column names in order to show the column values in separate rows:
select
columns.col,
case columns.col
when 'Col1' then q.col1
when 'Col2' then q.col2
when 'Col3' then q.col3
when 'Col4' then q.col4
end as value
from ( <your query here> ) q
cross join ( values ('Col1'), ('Col2'), ('Col3'), ('Col4') ) as columns(col);
I am trying to take one column in my table that has multiple values (up to 10) delimited by a "pipe" "|" in it and add the delimited values into additional columns in the table. Note (running on SQL SVR 2014).
Table ...
Col1 Col2 Col3
1 Tom 12345678|87654321|11111111|22222222|..... up to 10
2 Joe 14563467
3 Zac 12345678|87654321
I need the results of SQL to produce
Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8 Col9 ....
1 Tom 12345678 87654321 11111111 22222222
2 Joe 14563467
3 Zac 12345678 87654321
Any help is appreciated!
You can first normalize your data using the new STRING_SPLIT function into a derived table with the split columns stretched downward. Using that table you can PIVOT out based on Col1 to create the 5 columns basically pulling the data back up that was previously split down. Next, use that data as the source for you update back to the source table.
If you are not on SQL Server 2016 then you will need to replace STRING_SPLIT with an delimited string parser Table Value Function .
DECLARE #T TABLE(Col1 INT, Col2 NVARCHAR(50), Col3 NVARCHAR(50), Col4 NVARCHAR(50), Col5 NVARCHAR(50))
INSERT #T (COl1,Col2) VALUES (1,'12345678|87654321|11111111|22222222|')
INSERT #T (COl1,Col2) VALUES (2,'12345678')
INSERT #T (COl1,Col2) VALUES (3,'12345678|87654321|')
SELECT * FROM #T
;
WITH SplitData AS
(
SELECT
Col1,Col2 = S.Value,
RN = ROW_NUMBER()OVER( PARTITION BY Col1 ORDER BY (SELECT 1 AS X))
FROM
#T
CROSS APPLY STRING_SPLIT(Col2,'|') S
)
,UpdateData AS
(
SELECT
Col1, Col2=[1], Col3=[2], Col4=[3], Col5=[4]
FROM
(
SELECT Col1, Col2, RN FROM SplitData
) AS S
PIVOT(
MAX(Col2) FOR RN IN ([1], [2], [3], [4], [5])
) AS P
)
UPDATE L
SET L.Col1 = R.Col1, L.Col2=R.Col2, L.Col3=R.Col3, L.Col4=R.Col4, L.Col5 = R.Col5
FROM
#T L
INNER JOIN UpdateData R ON L.Col1 = R.Col1
SELECT * FROM #T
If u are sure max values count in Col3 is 10 u can use cross apply with split string on Col3 and select columns with splited value and row number partitioned by col1 and col2. Secound step is pivot this table by row
WITH SplitTable AS(
SELECT Col1
,Col2
,value
,ROW_NUMBER() OVER(PARTITION BY Col1, Col2 ORDER BY (SELECT NULL)) as rn
FROM YOUR_TABLE
CROSS APPLY STRING_SPLIT(Col3, '|') AS YT
)
SELECT Col1
,Col2
,[1]
,[2]
,[3]
,[4]
,[5]
,[6]
,[7]
,[8]
,[9]
,[10]
FROM SplitTable
PIVOT(
MAX(VALUE)
FOR RN IN([1],[2],[3],[4],[5],[6],[7],[8],[9],[10])
) as PVT
I have table in sql i want to change fieldColumnName as a column and fieldValue as a row.
this is my table image
As per your question, You want to alter table (change column name as well as data type)
ALTER TABLE tablename
CHANGE `fieldColumnName` `column` VARCHAR(255),
CHANGE `fieldValue` `row` VARCHAR(255)
In above query you change datatype as you wish.
If you know all the possible values in the fieldColumnName column then you could use pivot like this:
declare #data table(fieldValue varchar(50), fieldColumnName varchar(50))
INSERT INTO #data
SELECT '1 - value', 'col1'
UNION
SELECT '2 - value', 'col2'
UNION
SELECT NULL, 'col6'
select *
from #data
select col1, col2, col3
from
(
select fieldValue, fieldColumnName
from #data
) d
pivot
(
max(fieldValue)
for fieldColumnName in (col1, col2, col3)
) piv;
I have a table with columns say col1, col2, col3. The table has many rows in it.
Let's assume val1, val2, val3 is one such row. I want to get the result as
Col1, Val1
Col2, Val2
Col3, Val3
That is 3 rows - one for each column and its value.
I am using SQL Server 2008. I read about pivots. Are pivots a way to solve this problem? Can someone route me to some examples or solutions how to solve this problem?
Thanks a lot
Maybe something like this:
Test data
DECLARE #T TABLE(Col1 INT, Col2 INT, Col3 INT)
INSERT INTO #T
VALUES (1,1,1)
Query
SELECT
*
FROM
(
SELECT
t.Col1,
t.Col2,
t.Col3
FROM
#T AS t
) AS SourceTable
UNPIVOT
(
Value FOR Col IN
(Col1,Col2,Col3)
) AS unpvt
Output
1 Col1
1 Col2
1 Col3
To do this kind of thing read the following: Using PIVOT and UNPIVOT
Pivot function allow you to convert row values in from of column..
Also check : Dynamic Pivoting in SQL Server
Example :
create table #temptable(colorname varchar(25),Hexa varchar(7),rgb varchar(1), rgbvalue tinyint)
GO
insert into #temptable values('Violet','#8B00FF','r',139);
insert into #temptable values('Violet','#8B00FF','g',0);
insert into #temptable values('Violet','#8B00FF','b',255);
insert into #temptable values('Indigo','#4B0082','r',75);
insert into #temptable values('Indigo','#4B0082','g',0);
insert into #temptable values('Indigo','#4B0082','b',130);
insert into #temptable values('Blue','#0000FF','r',0);
insert into #temptable values('Blue','#0000FF','g',0);
insert into #temptable values('Blue','#0000FF','b',255);
SELECT colorname,hexa,[r], [g], [b]
FROM
(SELECT colorname,hexa,rgb,rgbvalue
FROM #temptable) AS TableToBePivoted
PIVOT
(
sum(rgbvalue)
FOR rgb IN ([r], [g], [b])
) AS PivotedTable;
Create a temproary table:
CREATE TABLE #table2
(
name NCHAR,
bonus INT
)
Now Select and execute the below statement if there is an empty.
SELECT * FROM #table2
INSERT INTO #table2 (name,bonus) VALUES ('A',10)
INSERT INTO #table2 (name,bonus) VALUES ('B',20)
INSERT INTO #table2 (name,bonus) VALUES ('C',30)
After insert the values into table. select and execute the below line if you get records:
SELECT * FROM #table2
Input:
name bonus
A 10
B 20
C 30
Change the input into like this result
Result:
Cost A B C
Bonus 10 20 30
By using this code:
SELECT 'Bonus' AS Cost,
[A],[B],[C]
FROM
(SELECT name, Bonus
FROM #table2) AS TempTbl
PIVOT
(
AVG(bonus)
FOR [name] IN ([A],[B],[C])
) AS PivotTable;
I need to to do a insert from a table with the following structure:
Table A
Col1 Col2 Col3 Col4
intID1 intID2 intID3 intID4
I need to select the rows from the above table that are null
for col1,col2,col3 and insert those rows into a table that will generate an identity
row that I need to use to insert into another table.I am not sure of the
sql statement or the general method used to select those rows and insert them multiple times and retrieve the identity id one by one to insert into the next table.
Any help is greatly appreciated!
Sample process:
Table A
Col1 Col2 Col3 Col4
1 3 7 null
null null null 45
null null null 67
1)Retrieve rows 2 and 3
2)Insert 2 and 3 into another table to retrieve identity id for both rows
3)Insert identities from step 2 into another table
Venk covered step 1 and 2 I think. For 3 can use the OUPUT clause to retrieve the identity value from set operation.
Get Identity of multiple insertion in sql server 2008
INSERT INTO TABLEB(Col1,Col2,Col3,Col4)
SELECT * FROM TABLEA WHERE Col1 is NULL AND Col2 is NULL AND Col3 is NULL;
Sounds like you need the output operator:
declare #TableA table(Col1 int, Col2 int, Col3 int, Col4 int);
declare #TableB table(id int identity(1,1), Col1 int, Col2 int, Col3 int, Col4 int);
declare #Audit table(id int);
insert into #TableA
select 1,3,7,null union all
select null, null, null, 45 union all
select null, null, null, 67;
-- copy null columns from #TableA to #TableB
-- and output id's to #Audit
insert into #TableB
output inserted.id
into #Audit
select *
from #TableA
where Col1 is null
and Col2 is null
and Col3 is null;
-- Copied #TableB values and #Audit values
select * from #TableB;
select * from #Audit;