How to adjust SQL aggregation by date query result to merge values in same level where nulls exist for some...

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Sorry for the messy title but here is my problem description.

| id|dateKey|colA|colB|colD|colE|

+---+-------+----+----+----+----+

| 1 |180111 | 1  | 5  |Null|Null|

| 2 |180111 |Null|Null| 6  | 7  |

| 3 |180111 | 2  | 5  | 3  | 2  |

I have the above table data but I want the result to appear as below when data aggregated (e.g. sum) by date:

|dateKey|colA|colB|colD|colE|

+-------+----+----+----+----+

|180111 | 3  | 10 |9   |9   |

Is there a way to do it as I am struggling to achieve it?

Note: this query will be running on 10 Gb of data with date filters.

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

Do you have a sample query? You can use coalesce to convert null or empty record to zero

– jned29
Jan 3 at 5:28

You can find the answer and live demo her- rextester.com/MKYY62432

– Suraj Kumar
Jan 3 at 5:38

add a comment |

Sorry for the messy title but here is my problem description.

| id|dateKey|colA|colB|colD|colE|

+---+-------+----+----+----+----+

| 1 |180111 | 1  | 5  |Null|Null|

| 2 |180111 |Null|Null| 6  | 7  |

| 3 |180111 | 2  | 5  | 3  | 2  |

I have the above table data but I want the result to appear as below when data aggregated (e.g. sum) by date:

|dateKey|colA|colB|colD|colE|

+-------+----+----+----+----+

|180111 | 3  | 10 |9   |9   |

Is there a way to do it as I am struggling to achieve it?

Note: this query will be running on 10 Gb of data with date filters.

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

Do you have a sample query? You can use coalesce to convert null or empty record to zero

– jned29
Jan 3 at 5:28

You can find the answer and live demo her- rextester.com/MKYY62432

– Suraj Kumar
Jan 3 at 5:38

add a comment |

Sorry for the messy title but here is my problem description.

| id|dateKey|colA|colB|colD|colE|

+---+-------+----+----+----+----+

| 1 |180111 | 1  | 5  |Null|Null|

| 2 |180111 |Null|Null| 6  | 7  |

| 3 |180111 | 2  | 5  | 3  | 2  |

I have the above table data but I want the result to appear as below when data aggregated (e.g. sum) by date:

|dateKey|colA|colB|colD|colE|

+-------+----+----+----+----+

|180111 | 3  | 10 |9   |9   |

Is there a way to do it as I am struggling to achieve it?

Note: this query will be running on 10 Gb of data with date filters.

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

Sorry for the messy title but here is my problem description.

| id|dateKey|colA|colB|colD|colE|

+---+-------+----+----+----+----+

| 1 |180111 | 1  | 5  |Null|Null|

| 2 |180111 |Null|Null| 6  | 7  |

| 3 |180111 | 2  | 5  | 3  | 2  |

I have the above table data but I want the result to appear as below when data aggregated (e.g. sum) by date:

|dateKey|colA|colB|colD|colE|

+-------+----+----+----+----+

|180111 | 3  | 10 |9   |9   |

Is there a way to do it as I am struggling to achieve it?

Note: this query will be running on 10 Gb of data with date filters.

sql sql-server tsql aggregate

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

edited Jan 3 at 6:19

marc_s

584k13011241270

edited Jan 3 at 6:19

marc_s

584k13011241270

edited Jan 3 at 6:19

marc_s

584k13011241270

asked Jan 3 at 5:27

BumbleBee

426

asked Jan 3 at 5:27

BumbleBee

426

asked Jan 3 at 5:27

BumbleBee

426

Do you have a sample query? You can use coalesce to convert null or empty record to zero

– jned29
Jan 3 at 5:28

You can find the answer and live demo her- rextester.com/MKYY62432

– Suraj Kumar
Jan 3 at 5:38

add a comment |

Do you have a sample query? You can use coalesce to convert null or empty record to zero

– jned29
Jan 3 at 5:28

You can find the answer and live demo her- rextester.com/MKYY62432

– Suraj Kumar
Jan 3 at 5:38

Do you have a sample query? You can use coalesce to convert null or empty record to zero

– jned29
Jan 3 at 5:28

You can find the answer and live demo her- rextester.com/MKYY62432

– Suraj Kumar
Jan 3 at 5:38

add a comment |

2 Answers
2

active

oldest

votes

A simple GROUP BY query with SUM should already meet your needs:

SELECT

    dateKey,

    SUM(colA) AS colA,

    SUM(colB) AS colB,

    SUM(colD) AS colD,

    SUM(colE) AS colE

FROM yourTable

GROUP BY dateKey;

The reason this should work is that SUM by default ignores NULL values, so only the numbers present should end up in the sum.

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

add a comment |

You can also use ISNULL to ignore and convert null values to zero as shown below.

create table #temp (id int, dateKey int, colA int, colB int, colD int, colE int)

insert into #temp values (1,180111, 1 , 5 ,Null,Null),

( 2,180111, Null  , Null  , 6 , 7 ),

( 3,180111, 2 , 5 , 3 , 2  )



SELECT

    dateKey,

    SUM(ISNULL(colA,0)) AS colA,

    SUM(ISNULL(colB,0)) AS colB,

    SUM(ISNULL(colD,0)) AS colD,

    SUM(ISNULL(colE,0)) AS colE

FROM #temp

GROUP BY dateKey;

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

A simple GROUP BY query with SUM should already meet your needs:

SELECT

    dateKey,

    SUM(colA) AS colA,

    SUM(colB) AS colB,

    SUM(colD) AS colD,

    SUM(colE) AS colE

FROM yourTable

GROUP BY dateKey;

The reason this should work is that SUM by default ignores NULL values, so only the numbers present should end up in the sum.

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

add a comment |

A simple GROUP BY query with SUM should already meet your needs:

SELECT

    dateKey,

    SUM(colA) AS colA,

    SUM(colB) AS colB,

    SUM(colD) AS colD,

    SUM(colE) AS colE

FROM yourTable

GROUP BY dateKey;

The reason this should work is that SUM by default ignores NULL values, so only the numbers present should end up in the sum.

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

add a comment |

A simple GROUP BY query with SUM should already meet your needs:

SELECT

    dateKey,

    SUM(colA) AS colA,

    SUM(colB) AS colB,

    SUM(colD) AS colD,

    SUM(colE) AS colE

FROM yourTable

GROUP BY dateKey;

The reason this should work is that SUM by default ignores NULL values, so only the numbers present should end up in the sum.

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

A simple GROUP BY query with SUM should already meet your needs:

SELECT

    dateKey,

    SUM(colA) AS colA,

    SUM(colB) AS colB,

    SUM(colD) AS colD,

    SUM(colE) AS colE

FROM yourTable

GROUP BY dateKey;

The reason this should work is that SUM by default ignores NULL values, so only the numbers present should end up in the sum.

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

answered Jan 3 at 5:29

Tim Biegeleisen

237k13100160

add a comment |

You can also use ISNULL to ignore and convert null values to zero as shown below.

create table #temp (id int, dateKey int, colA int, colB int, colD int, colE int)

insert into #temp values (1,180111, 1 , 5 ,Null,Null),

( 2,180111, Null  , Null  , 6 , 7 ),

( 3,180111, 2 , 5 , 3 , 2  )



SELECT

    dateKey,

    SUM(ISNULL(colA,0)) AS colA,

    SUM(ISNULL(colB,0)) AS colB,

    SUM(ISNULL(colD,0)) AS colD,

    SUM(ISNULL(colE,0)) AS colE

FROM #temp

GROUP BY dateKey;

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

add a comment |

You can also use ISNULL to ignore and convert null values to zero as shown below.

create table #temp (id int, dateKey int, colA int, colB int, colD int, colE int)

insert into #temp values (1,180111, 1 , 5 ,Null,Null),

( 2,180111, Null  , Null  , 6 , 7 ),

( 3,180111, 2 , 5 , 3 , 2  )



SELECT

    dateKey,

    SUM(ISNULL(colA,0)) AS colA,

    SUM(ISNULL(colB,0)) AS colB,

    SUM(ISNULL(colD,0)) AS colD,

    SUM(ISNULL(colE,0)) AS colE

FROM #temp

GROUP BY dateKey;

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

add a comment |

You can also use ISNULL to ignore and convert null values to zero as shown below.

create table #temp (id int, dateKey int, colA int, colB int, colD int, colE int)

insert into #temp values (1,180111, 1 , 5 ,Null,Null),

( 2,180111, Null  , Null  , 6 , 7 ),

( 3,180111, 2 , 5 , 3 , 2  )



SELECT

    dateKey,

    SUM(ISNULL(colA,0)) AS colA,

    SUM(ISNULL(colB,0)) AS colB,

    SUM(ISNULL(colD,0)) AS colD,

    SUM(ISNULL(colE,0)) AS colE

FROM #temp

GROUP BY dateKey;

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

You can also use ISNULL to ignore and convert null values to zero as shown below.

create table #temp (id int, dateKey int, colA int, colB int, colD int, colE int)

insert into #temp values (1,180111, 1 , 5 ,Null,Null),

( 2,180111, Null  , Null  , 6 , 7 ),

( 3,180111, 2 , 5 , 3 , 2  )



SELECT

    dateKey,

    SUM(ISNULL(colA,0)) AS colA,

    SUM(ISNULL(colB,0)) AS colB,

    SUM(ISNULL(colD,0)) AS colD,

    SUM(ISNULL(colE,0)) AS colE

FROM #temp

GROUP BY dateKey;

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

answered Jan 3 at 5:42

Suraj Kumar

2,79141026

add a comment |

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