StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POinsert several row in order to satisfy a constraint
primarykey
Id
2353602
data
AcceptedAnswerId
2354682
AnswerCount
1
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-03-01T02:39:23.587
FavoriteCount
0
LastActivityDate
2010-03-01T11:18:02.920
LastEditDate
2010-03-01T11:18:02.920
LastEditorUserId
274188
OwnerUserId
274188
ParentId
0
PostTypeId
1
Score
0
ViewCount
1804
LastEditorDisplayName
text
Body
I have two table: deck(id) and card(deck,color,value) deck have those constraints: <ul> <li><code>CHECK (fifty_two_cards_deck(id))</code></li> <li><code>PRIMARY KEY (id)</code> CREATE FUNCTION fifty_two_cards_deck(deck integer) RETURNS boolean LANGUAGE sql STABLE STRICT AS $$ SELECT COUNT(*)=52 FROM card WHERE deck=$1 $$;</li> </ul> and card have those constraints: <ul> <li><code>FOREIGN KEY (deck) REFERENCES deck(id)</code></li> <li><code>PRIMARY KEY (deck, color, value)</code></li> </ul> How can I insert a new deck? I tried this: <pre><code>begin transaction; INSERT INTO "public"."deck" ("id") VALUES (nextval('deck_id_seq'::regclass)); INSERT INTO "public"."card" ("deck", "color", "value") VALUES ('1', enum_first(null::Suit), enum_first(null::Symbol)); end transaction </code></pre> (i had edit <code>fifty_two_cards_deck</code> to be a <code>one_card_deck</code> for testing purpose) but I got this error: <blockquote> SQL error: ERROR: new row for relation "deck" violates check constraint "fifty_two_cards_deck" In statement: begin transaction; INSERT INTO "public"."deck" ("id") VALUES (nextval('deck_id_seq'::regclass)); INSERT INTO "public"."card" ("deck", "color", "value") VALUES ('1', enum_first(null::Suit), enum_first(null::Symbol)); end transaction </blockquote> How can I solve this without removing the constraints? EDIT: solution thx to Magnus Hagander I got it working like this (after setting the foreign key deferrable): <pre><code>begin transaction; SET CONSTRAINTS ALL DEFERRED; INSERT INTO "public"."deck-card" ("deck", "position", "color", "value") VALUES (1, 0, enum_first(null::suit), enum_first(null::Symbol)); INSERT INTO "public"."deck" ("id") VALUES (1); end transaction </code></pre>
Tags
<postgresql><transactions><constraints>
Title
insert several row in order to satisfy a constraint
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USMathieu
UserOwnerUserId
1. USMathieu
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
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.