Databases
StackOverflow2013
Postsdbo
PODatabaseError: more than one row returned by a subquery used as an expression (Django)
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODatabaseError: more than one row returned by a subquery used as an expression (Django)
    primarykey
    data
    text
    <p>Django through a <code>DatabaseError</code> when I try to use a merged query set. My code is</p> <pre><code>assetsNetwork = Asset.objects.filter(client=myClient, module__label__in=network_label_list) vulnsNetworkRaw = Vuln.objects.none() for asset in assetsNetwork: vulnsNetworkRaw = vulnsNetworkRaw | asset.latest_vulns logging.debug("+++%s+++"%vulnsNetworkRaw) </code></pre> <p>The error message is </p> <pre><code>DatabaseError: more than one row returned by a subquery used as an expression </code></pre> <p>The .latest_vulns method is</p> <pre><code>@property def latest_scan(self): from arachni.models import WebScan, Vulns as WebVuln my_module = self.module try: return Scan.objects.filter(assets__id=self.id, status='Audit Complete').latest('completed_Date') except: return Scan.objects.none() @property def latest_vulns(self): from arachni.models import WebScan, Vulns as WebVuln latest_scan = self.latest_scan return Vuln.objects.filter(scan=latest_scan, host=self.IP_Address) </code></pre> <p>Query:</p> <pre><code>2012-08-07 16:44:38 EDT STATEMENT: SELECT "pegasus_vuln"."id", "pegasus_vuln"."nvt_id", "pegasus_vuln"."scan_id", "pegasus_vuln"."host", "pegasus_vuln"."port", "pegasus_vuln"."risk_factor", "pegasus_vuln"."cvss_score", "pegasus_vuln"."status", "pegasus_vuln"."change", "pegasus_vuln"."comment", "pegasus_vuln"."description", "pegasus_vuln"."solution", "pegasus_vuln"."_order" FROM "pegasus_vuln" WHERE (("pegasus_vuln"."host" = '192.168.2.251' AND "pegasus_vuln"."scan_id" = 95 ) OR ("pegasus_vuln"."host" = '192.168.2.5' AND "pegasus_vuln"."scan_id" = (SELECT U0."id" FROM "pegasus_scan" U0)) OR ("pegasus_vuln"."host" = '10.1.10.244' AND "pegasus_vuln"."scan_id" = 109 ) OR ("pegasus_vuln"."host" = '192.168.2.5' AND "pegasus_vuln"."scan_id" = (SELECT U0."id" FROM "pegasus_scan" U0)) OR ("pegasus_vuln"."host" = '192.168.2.248' AND "pegasus_vuln"."scan_id" = (SELECT U0."id" FROM "pegasus_scan" U0))) ORDER BY "pegasus_vuln"."_order" ASC LIMIT 21 2012-08-07 16:44:38 EDT ERROR: more than one row returned by a subquery used as an expression </code></pre> <p>It successfully logs for several times, but gives an error also in the logging line. Could anybody help me? Thanks a lot.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USWei An
    1. USWei An
    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. COWhat is the query that fails?
      singulars
      1. PODatabaseError: more than one row returned by a subquery used as an expression (Django)
      1. USIgnacio Vazquez-Abrams
    2. CO`asset.latest_vulns` is a list. Can you use `|` with a list?
      singulars
      1. PODatabaseError: more than one row returned by a subquery used as an expression (Django)
      1. USzaphod
    3. CO@IgnacioVazquez-Abrams: added the query by editing the original post. Thanks.
      singulars
      1. PODatabaseError: more than one row returned by a subquery used as an expression (Django)
      1. USWei An
 

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