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Results for “Collections & data structures”

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SQL ServerConstraints & defaults

Block deletion of a referenced parent

SQL Server: The default foreign-key action prevents deletion while a child still refers to the parent.

SQL Server✓ Tested
PostgresConstraints & defaults

Block deletion of a referenced parent

Postgres: The default foreign-key action prevents deletion while a child still refers to the parent.

Postgres✓ Tested
SQLiteConstraints & defaults

Block deletion of a referenced parent

SQLite: The default foreign-key action prevents deletion while a child still refers to the parent.

SQLite✓ Tested
SQLiteJSON data

Build a JSON array from rows

Aggregate ordered text values into JSON.

json_group_array✓ Tested
SQLSubqueries & ranked selection

Build a query from several named stages

SQL: Separate row selection from aggregation using two common table expressions.

SQL✓ Tested
SQL ServerSubqueries & ranked selection

Build a query from several named stages

SQL Server: Separate row selection from aggregation using two common table expressions.

SQL Server✓ Tested
PostgresSubqueries & ranked selection

Build a query from several named stages

Postgres: Separate row selection from aggregation using two common table expressions.

Postgres✓ Tested
SQLiteSubqueries & ranked selection

Build a query from several named stages

SQLite: Separate row selection from aggregation using two common table expressions.

SQLite✓ Tested
SQLWindow analytics

Calculate a cumulative integer percentage

SQL: Divide a running window sum by the complete total using a unique ordering key.

SQL✓ Tested
SQL ServerWindow analytics

Calculate a cumulative integer percentage

SQL Server: Divide a running window sum by the complete total using a unique ordering key.

SQL Server✓ Tested
PostgresWindow analytics

Calculate a cumulative integer percentage

Postgres: Divide a running window sum by the complete total using a unique ordering key.

Postgres✓ Tested
SQLiteWindow analytics

Calculate a cumulative integer percentage

SQLite: Divide a running window sum by the complete total using a unique ordering key.

SQLite✓ Tested