Databases
StackOverflow2013
Postsdbo
POFilter Left join sql
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POFilter Left join sql
    primarykey
    data
    text
    <p>I have this sql query : </p> <pre><code>SELECT Customer.IDCustomer, Customer.Name, Sign.IdSign, Sign.Name, Sign.Delete FROM Customer LEFT JOIN Sign_Customer ON Sign_Customer.IDCustomer=Customer.IDCustomer AND ( SELECT CAST(CASE WHEN S_C.Delete=0 OR S_C.Delete is Null THEN 1 ELSE 0 END AS BIT ) FROM Sign AS S_C WHERE S_C.IdSign=Sign_Customer.IdSign)=1 LEFT JOIN Sign ON Sign.IdSign=Sign_Customer.IdSign ORDER BY Customer.Name </code></pre> <p>This query works fine, but I want to know if it exists another way to filter my first left join without use the SELECT CAST... condition. </p> <hr> <h2>Update</h2> <p>Sorry, I don't explain what I want in my result:</p> <ul> <li>All my customer without Sign </li> <li>All my customer whith enable Sign</li> </ul> <p>A Customer with disable Sign doesn't appear or appear like a "without Sign" if no enable Sign exist for it.</p> <p>Exemple: my customer table</p> <pre><code>IDCustomer | Name 1 | Customer 1 2 | Customer 2 3 | Customer 3 4 | Customer 4 </code></pre> <p>Sign_Customer:</p> <pre><code>IDCustomer | IdSign 1 | 1 3 | 2 3 | 3 3 | 5 4 | 4 </code></pre> <p>Sign</p> <pre><code>IdSign | Name | Delete 1 | Sign1 | 0 2 | Sign2 | 1 3 | Sign3 | 0 4 | Sign4 | 1 5 | Sign5 | 0 </code></pre> <p>Result</p> <pre><code>Customer.IDCustomer | Customer.Name | Sign.IdSign | Sign.Name | Sign.Delete 1 | Customer 1 | 1 | Sign1 | 0 2 | Customer 2 | null | null | null 3 | Customer 3 | 3 | Sign3 | 0 3 | Customer 3 | 5 | Sign5 | 0 4 | Customer 4 | null | null | null </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USFabrice Mainguené
    1. USFabrice Mainguené
    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. POFilter Left join sql
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIs this result for IDCustomer=4 correct?
      singulars
      1. POFilter Left join sql
      1. USLieven Keersmaekers
    2. COyes, because I make my test on the Sign_Customer Left join
      singulars
      1. POFilter Left join sql
      1. USFabrice Mainguené
 

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