sql - This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression. More than 1 value was returned. -

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iam trying query , these following errors. error saying primary key constraint pk_itempath has been violated. should inorder rectify error query wont able run 

use sk_en_userdb go  set noexec off  go if(db_name() not '%_userdb') begin     raiserror ('you must run script in userdb database',18,0)     set noexec on end  go  if(not exists(select * userrights.path pathid = 'myviews')) begin     insert userrights.path(pathid, isvendorspecific)     values('myviews', 0) end   if(not exists(select * userrights.products projectname = 'products')) begin     insert userrights.products(productid, projectname)     values(         (select max(productid) + 1 [userrights].products),         'products'     ) end  insert userrights.productstopath(productid, pathid) values(     (select productid     [userrights].products     projectname = 'products'),     'myviews' )  insert userrights.modulestoproducts(moduleid, productid) values(     (select moduleid     [userrights].[modules]     displayname = 'products product' or hierarchyname '%products product%'),      (select productid     [userrights].products     projectname = 'products') )

first, inner selects returning more 1 value per insert statement.

try changing insert statements from:

insert userrights.productstopath(productid, pathid) values(     (select productid     [userrights].products     projectname = 'products'),     'myviews' )

to:

insert userrights.productstopath(productid, pathid) (select top 1 productid     [userrights].products     projectname = 'products'),     'myviews'

if need batch inserts (more 1 record per statement), use cursor.

with regards itempath pk violation - question doesn't give me enough information table schema, error means you're inserting record primary key exists. inner selects well.


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