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

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SQLiteText cleanup & matching

Combine text values with a separator

SQLite: Use the concatenation operator supported by the selected SQL dialect.

SQLite✓ Tested
AngularLifecycle & observable data

Combine the latest values from observables

Combine the latest values from observables with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
jQueryCollections & styling

Combine two selections

jQuery: add returns a combined collection in document order.

jQuery✓ Tested
SQLSchema design & transactions

Commit multiple related changes together

SQL: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQL✓ Tested
SQL ServerSchema design & transactions

Commit multiple related changes together

SQL Server: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQL Server✓ Tested
PostgresSchema design & transactions

Commit multiple related changes together

Postgres: The first transaction prepares the fixtures. The second commits both updates as one unit.

Postgres✓ Tested
SQLiteSchema design & transactions

Commit multiple related changes together

SQLite: The first transaction prepares the fixtures. The second commits both updates as one unit.

SQLite✓ Tested
SQLJoins & subqueries

Compare with a calculated value

Find products above the average price.

subquery✓ Tested
ReactComponents & props

Compose a component with named content slots

Compose a component with named content slots with a small React component and explicit browser behavior.

React✓ Tested
ReactGetting Started

Compose content through children

Compose content through children with a small React component and explicit browser behavior.

React✓ Tested
SQLiteTables & writes

Compute a generated column

Store inputs and derive a value from them.

generated column✓ Tested
SQLReporting & grouped calculations

Compute an integer weighted average

SQL: Multiply before summing and guard a zero total weight with NULLIF.

SQL✓ Tested