Multiple CTE in single query Multiple CTE in single query postgresql postgresql
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Multiple CTE in single query
sql
postgresql
common-table-expression
recursive-query
arel
lien
postgresql
Issue when retrieving records with empty array
ruby-on-rails
ruby-on-rails-3
postgresql
activerecord
arel
lien
postgresql
Rails 4 query unique by single attribute
ruby-on-rails
postgresql
activerecord
arel
lien
postgresql
Converting a complex postgresql query/subquery to Rails activerecord syntax OR convert array to active record relation?
postgresql
ruby-on-rails-4
activerecord
ransack
arel
lien
postgresql
How to make attribute setter send value through SQL function
sql
ruby-on-rails
postgresql
activerecord
arel
lien
postgresql
SQL "IN subquery" when subquery can be NULL
sql
ruby-on-rails
sqlite
postgresql
arel
lien
postgresql
PG::InvalidColumnReference: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list
ruby-on-rails
postgresql
activerecord
arel
lien
postgresql
get RETURNING after updating a record in rails
ruby-on-rails
postgresql
activerecord
arel
lien
postgresql
What is the difference between "x IS NULL" and "NOT (x IS NOT NULL)"?
sql
ruby-on-rails
postgresql
arel
lien
postgresql
In Rails5, how do I return the union of two scopes or combine them into one?
ruby-on-rails
postgresql
activerecord
arel
lien
postgresql
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