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Results for “require”

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

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SQLConstraints & defaults

Keep children while clearing a deleted relationship

SQL: ON DELETE SET NULL requires a nullable foreign-key column.

SQL✓ Tested
SQL ServerConstraints & defaults

Keep children while clearing a deleted relationship

SQL Server: ON DELETE SET NULL requires a nullable foreign-key column.

SQL Server✓ Tested
PostgresConstraints & defaults

Keep children while clearing a deleted relationship

Postgres: ON DELETE SET NULL requires a nullable foreign-key column.

Postgres✓ Tested
SQLiteConstraints & defaults

Keep children while clearing a deleted relationship

SQLite: ON DELETE SET NULL requires a nullable foreign-key column.

SQLite✓ Tested
Docker / ComposeDockerfile patterns

Keep exec-form arguments literal

Docker / Compose: JSON exec form does not expand shell environment variables.

Docker / Compose✓ Tested
PowerShellFunctions & parameter validation

Keep function-local assignments separate from caller state

PowerShell: Ordinary function assignments create local variables rather than replacing the caller’s variable.

PowerShell✓ Tested
Bash ScriptsProcesses & environment

Keep loop state by avoiding a pipeline subshell

Bash Scripts: Redirect input into a while loop so updates to a counter remain in the current shell.

Bash Scripts✓ Tested
SQL ServerRelationships & missing data

Keep parent rows while filtering joined children

SQL Server: Put a child filter in ON when unmatched parents must remain in the result.

SQL Server✓ Tested
PostgresRelationships & missing data

Keep parent rows while filtering joined children

Postgres: Put a child filter in ON when unmatched parents must remain in the result.

Postgres✓ Tested
SQLiteRelationships & missing data

Keep parent rows while filtering joined children

SQLite: Put a child filter in ON when unmatched parents must remain in the result.

SQLite✓ Tested
SQL ServerGetting Started

Keep rows matching a condition

SQL Server: Use WHERE to select rows with a particular category.

SQL Server✓ Tested
PostgresGetting Started

Keep rows matching a condition

Postgres: Use WHERE to select rows with a particular category.

Postgres✓ Tested