CODEWITHSUNDEEP
sqlsql-serversql-server-2008sql-server-2005
Newton Sheikh
Newton Sheikh

Reputation: 1406

Get MAX and MIN values of each rows in sql server

I have a set of rows with values

enter image description here

I want the following OutPut with individual Max and min values

enter image description here

Sorry for the poor prntsceen. i dont know how to draw tables in stackoverflow.

Upvotes: 1

Views: 3569

Answers (3)

Devart
Devart

Reputation: 122032

Try this one -

DECLARE @temp TABLE
(
      Value1 INT
    , Value2 INT
    , Value3 INT
    , Value4 INT
)

INSERT INTO @temp (Value1, Value2, Value3, Value4)
VALUES 
    (NULL, 1, 1, NULL),
    (NULL, 1, 2, NULL),
    (NULL, 2, 2, NULL),
    (NULL, 2, 2, NULL),
    (1, 1, 1, 1),
    (2, 2, 1, 2),
    (1, 1, 1, NULL),
    (2, 2, 3, 2),
    (2, 2, 2, 2),
    (1, 1, 1, 1)

SELECT
      Value1
    , Value2
    , Value3
    , Value4
    , MinValue = (
        SELECT TOP 1 value 
        FROM (
            SELECT value = value1
              UNION
            SELECT value2
              UNION
            SELECT value3
              UNION
            SELECT value4
        ) mn
        ORDER BY value
    )
    , MaxValue = (
        SELECT MAX(value) 
        FROM (
            SELECT value = value1
              UNION
            SELECT value2
              UNION
            SELECT value3
              UNION
            SELECT value4
        ) mx
    )
FROM @temp

Results window:

proff

Upvotes: 2

TechDo
TechDo

Reputation: 18659

Please try:

declare @T table
(
  id int, 
  num1 int, 
  num2 int, 
  num3 int,  
  num4 int,   
  num5 int
)

insert into @T values
(1,     6,      51,      NULL,      99,      34),
(2,     222,    251,     24,     299,     234),
(3,     NULL,   NULL,    NULL,   NULL,    NULL)

select * From @T

SELECT id,
(SELECT 
(CASE WHEN (num1+num2+num3+num4+num5) IS NULL THEN NULL 
    ELSE MIN(v) end) 
FROM (VALUES (num1), 
            (num2), 
            (num3), 
            (num4), 
            (num5)) AS value(v)) as [MinVal],
(SELECT MAX(v) 
FROM (VALUES (num1), 
            (num2), 
            (num3), 
            (num4), 
            (num5)) AS value(v)) as [MaxVal]
FROM @T

Upvotes: 1

RichardTheKiwi
RichardTheKiwi

Reputation: 107826

select value1, value2, value3, value4,
       [min]=(select min(value) from (
              select value1 union all
              select value2 union all
              select value3 union all
              select value4) X(value)),
       [max]=(select max(value) from (
              select value1 union all
              select value2 union all
              select value3 union all
              select value4) Y(value))
  from tbl;

To recognize NULLs as min values, use the below instead

select value1, value2, value3, value4,
       [min]=(select TOP(1) value from (
                 select value1 union all
                 select value2 union all
                 select value3 union all
                 select value4) X(value)
              ORDER BY value ASC),
       [max]=(select TOP(1) value from (
                 select value1 union all
                 select value2 union all
                 select value3 union all
                 select value4) X(value)
              ORDER BY value DESC)
  from tbl;

Upvotes: 11

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