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Small, practical examples. Search by task or narrow things down below.

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PostgresSchema design & transactions

Read updated base-table values through a view

Postgres: An ordinary view reflects later changes to its underlying data.

Postgres✓ Tested
SQLiteSchema design & transactions

Read updated base-table values through a view

SQLite: An ordinary view reflects later changes to its underlying data.

SQLite✓ Tested
RustIterators & transformations

Read values until a condition changes

Read values until a condition changes in a complete Rust program using the standard library.

Rust✓ Tested
Bash ScriptsInput streams & redirection

Redirect an entire group of commands

Bash Scripts: Brace grouping runs in the current shell and shares a single output redirection.

Bash Scripts✓ Tested
SQLConstraints & defaults

Reference a parent identified by two columns

SQL: A composite foreign key checks the complete referenced key rather than either column independently.

SQL✓ Tested
SQL ServerConstraints & defaults

Reference a parent identified by two columns

SQL Server: A composite foreign key checks the complete referenced key rather than either column independently.

SQL Server✓ Tested
PostgresConstraints & defaults

Reference a parent identified by two columns

Postgres: A composite foreign key checks the complete referenced key rather than either column independently.

Postgres✓ Tested
SQLiteConstraints & defaults

Reference a parent identified by two columns

SQLite: A composite foreign key checks the complete referenced key rather than either column independently.

SQLite✓ Tested
SQLConstraints & defaults

Reject a negative quantity with CHECK

SQL: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.

SQL✓ Tested
SQL ServerConstraints & defaults

Reject a negative quantity with CHECK

SQL Server: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.

SQL Server✓ Tested
PostgresConstraints & defaults

Reject a negative quantity with CHECK

Postgres: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.

Postgres✓ Tested
SQLiteConstraints & defaults

Reject a negative quantity with CHECK

SQLite: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.

SQLite✓ Tested