Databases
StackOverflow2013
Postsdbo
POSimplify Multiple Join SQL Column
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POSimplify Multiple Join SQL Column
    primarykey
    data
    text
    <p>i have select statment query with join statment, which I use to get value from joining the table</p> <p>here's my Select query:</p> <pre><code>select case when p1.Value2 is not null then p1.Value3 end as fix1, case when p1.Value2 is not null then p2.Value3 end as fix2, case when p1.Value2 is not null then p3.Value3 end as fix3, case when p1.Value2 is not null then p4.Value3 end as fix4, case when p1.Value2 is not null then p5.Value3 end as fix5, case when p1.Value2 is not null then p6.Value3 end as fix6 from tc t left join (select * from Parameter where paramtype='fix') as p1 on p1.Value2 = t.FIX left join (select * from Parameter where paramtype='fix') as p2 on p2.Value2 = t.FIX1 left join (select * from Parameter where paramtype='fix') as p3 on p3.Value2 = t.FIX2 left join (select * from Parameter where paramtype='fix') as p4 on p4.Value2 = t.FIX3 left join (select * from Parameter where paramtype='fix') as p5 on p5.Value2 = t.FIX4 left join (select * from Parameter where paramtype='fix') as p6 on p6.Value2 = t.FIX5 where CUST_ACCT ='10053996' </code></pre> <p>I thought its to complicated , so I change my code like this :</p> <pre><code>select fix +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = fix) as fix, FIX1 +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = FIX1) as FIX1, FIX2 +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = FIX2) as FIX2, FIX3 +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = FIX3) as FIX3, FIX4 +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = FIX4) as FIX4, FIX5 +' '+(select Value3 from Parameter where ParamType = 'fix' and Value2 = FIX5) as FIX5 from tc where CUST_ACCT ='10053996' </code></pre> <p>is it possible to simplify my code ? or if I wanna do something like this I should Create select statment like that?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USSabilv
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POSimplify Multiple Join SQL Column
      1. USuvais
      1. VTFavorite
    1. COHow bout you try to explain what you are trying to achieve also with the query
      singulars
      1. POSimplify Multiple Join SQL Column
      1. USJanne Matikainen
    2. COactually I want simplier and effective code , and also I want to avoid error from subquery
      singulars
      1. POSimplify Multiple Join SQL Column
      1. USSabilv
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload