Databases
StackOverflow2013
Postsdbo
POUsing a view with no primary key with Entity
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POUsing a view with no primary key with Entity
    primarykey
    data
    text
    <p>I just started on a project converting an application from raw ADO.NET and embedded SQL to Entity. I ran in to a problem with one of the views used by the application. The view has no primary key and no column (or combination of columns) that uniquely identifies a row. Here is the select the view is created with:</p> <pre><code>SELECT filingmonth, CEIL(filingmonth / 3), licnum, filingyear, DECODE(GROUPING(insurername), '1', '- All Insured -', insurername), insurername, policylinecode, linedescription, SUM(NVL(grosspremium, 0)), SUM(DECODE(taxexempt, 1, grosspremium, 0)), TRUNC( CASE WHEN ( b.rsn IS NOT NULL OR A.zeroreport = 1 ) AND b.datereceived IS NULL THEN A.datereceived ELSE b.datereceived END), SUM(aip.iscompanyadmitted(b.naiccocode, b.naicalienid)), A.insuredid FROM aip.slbtransinsured A LEFT OUTER JOIN aip.slbtransinsurer b ON A.insuredid = b.insuredid LEFT OUTER JOIN aip.slblinecodes C ON b.policylinecode = C.linecode WHERE A.submitted = 1 AND A.entryincomplete = 0 GROUP BY licnum, filingmonth, filingyear, TRUNC( CASE WHEN ( b.rsn IS NOT NULL OR A.zeroreport = 1 ) AND b.datereceived IS NULL THEN A.datereceived ELSE b.datereceived END), ROLLUP(insurername, aip.iscompanyadmitted(b.naiccocode, b.naicalienid), policylinecode, linedescription), A.insuredid; </code></pre> <p>And here is some sample data showing that there are some rows that are completely duplicated (rows 3 and 4):</p> <pre><code>FILINGMONTH CEIL(FILINGMONTH/3) LICNUM FILINGYEAR DECODE(GROUPING(INSURERNAME),'1','-ALLINSURED-',INSURERNAME) INSURERNAME POLICYLINECODE LINEDESCRIPTION SUM(NVL(GROSSPREMIUM,0)) SUM(DECODE(TAXEXEMPT,1,GROSSPREMIUM,0)) TRUNC(CASEWHEN(B.RSNISNOTNULLORA.ZEROREPORT=1)ANDB.DATERECEIVEDISNULLTHENA.DATERECEIVEDELSEB.DATERECEIVEDEND) SUM(AIP.ISCOMPANYADMITTED(B.NAICCOCODE,B.NAICALIENID)) INSUREDID 6 2 8150 2007 SAVERS PROPERTY AND CASUALTY INSURANCE CO SAVERS PROPERTY AND CASUALTY INSURANCE CO 17 OTHER LIABILITY 721.25 0 18-JUL-07 0 81 6 2 8150 2007 SAVERS PROPERTY AND CASUALTY INSURANCE CO SAVERS PROPERTY AND CASUALTY INSURANCE CO 17 721.25 0 18-JUL-07 0 81 6 2 8150 2007 SAVERS PROPERTY AND CASUALTY INSURANCE CO SAVERS PROPERTY AND CASUALTY INSURANCE CO 721.25 0 18-JUL-07 0 81 6 2 8150 2007 SAVERS PROPERTY AND CASUALTY INSURANCE CO SAVERS PROPERTY AND CASUALTY INSURANCE CO 721.25 0 18-JUL-07 0 81 </code></pre> <p>insuredid is the pk for the aip.slbtransinsured table, rsn is the pk for aip.slbtransinsurer and aip.slblinecodes.</p> <p>Is it at all possible to add a view to the Entity model without a unique identifier? Or is there an easy way to add a unique row identifier to the view? The view is only read from, never written to.</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. USMike B
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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