Tag aggregate-functions - Questa è pagina 5 - GeneraCodice

Find rows with duplicate values in a column

https://www.generacodice.com/it/articolo/12955699/find-rows-with-duplicate-values-in-a-column

  sql  -  postgresql  -  duplicates  -  aggregate-functions  -  window-functions

StackOverflow

GROUP BY with MAX date field - erratic results

https://www.generacodice.com/it/articolo/12954943/group-by-with-max-date-field-erratic-results

  mysql  -  sql  -  group-by  -  aggregate-functions

StackOverflow

How to find most-correlated X for each Y?

https://www.generacodice.com/it/articolo/12919552/how-to-find-most-correlated-x-for-each-y

  sql  -  postgresql  -  greatest-n-per-group  -  aggregate-functions

StackOverflow

How do I calculate percent of whole within a Postgres JSON array?

https://www.generacodice.com/it/articolo/12891751/how-do-i-calculate-percent-of-whole-within-a-postgres-json-array

  postgresql  -  json  -  aggregate-functions

StackOverflow

Postgres: limit by the results of a sum function

https://www.generacodice.com/it/articolo/12875815/postgres-limit-by-the-results-of-a-sum-function

  sql  -  postgresql  -  common-table-expression  -  aggregate-functions  -  plpgsql

StackOverflow

Count records in each category

https://www.generacodice.com/it/articolo/12835477/count-records-in-each-category

  sql  -  postgresql  -  count  -  aggregate-functions

StackOverflow

Rails 4, PostgreSQL: convert results of find_by_sql aggregate functions into OpenStruct

https://www.generacodice.com/it/articolo/12834142/rails-4-postgresql-convert-results-of-find-by-sql-aggregate-functions-into-openstruct

  postgresql  -  aggregate-functions  -  ruby-on-rails-4  -  find-by-sql

StackOverflow

How to group by a, b and return set of N rows of b

https://www.generacodice.com/it/articolo/12829081/how-to-group-by-a-b-and-return-set-of-n-rows-of-b

  sql  -  postgresql  -  left-join  -  aggregate-functions  -  postgresql-9.1

StackOverflow

The aggregate function GROUP BY and SUM return inconsisten data?

https://www.generacodice.com/it/articolo/12796303/the-aggregate-function-group-by-and-sum-return-inconsisten-data

  mysql  -  aggregate-functions

StackOverflow

SQL query over parents with exact same set of children

https://www.generacodice.com/it/articolo/12795565/sql-query-over-parents-with-exact-same-set-of-children

  sql  -  postgresql  -  aggregate-functions  -  relational-division

StackOverflow

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