Question 1

How to configure WAL mode in crystal-sqlite3?

Accepted Answer

Add 'journal_mode=wal' to the connection URI, like 'sqlite3://./data.db?journal_mode=wal'. This enables Write-Ahead Logging for better concurrency, but ensure synchronous settings are adjusted too.

Question 2

Does crystal-sqlite3 support named parameters in queries?

Accepted Answer

Yes, it supports both positional and named parameter binding for secure operations, as mentioned in the Key Features. Use placeholders like :name in SQL and bind values accordingly.

Question 3

crystal-sqlite3 vs crystal-pg for local development?

Accepted Answer

crystal-sqlite3 is best for simple, file-based persistence without a server, while crystal-pg is for PostgreSQL with more advanced features. Choose based on need for scalability or SQLite's simplicity.

Question 4

How to handle Time types with crystal-sqlite3?

Accepted Answer

Time is stored as TEXT in SQLite using a specific format (e.g., with subseconds). The driver automatically converts between Crystal Time and SQLite TEXT, but ensure consistency in queries.

Question 5

Can I use crystal-sqlite3 with multiple database files?

Accepted Answer

Yes, open multiple connections to different .db files using separate URIs. However, SQLite doesn't natively support cross-database joins, so manage connections manually in Crystal.

Question 6

What happens if PRAGMA values are wrong in the URI?

Accepted Answer

The library passes values directly to SQLite without validation, so incorrect values might cause silent failures or unexpected behavior, as warned in the README.

crystal-sqlite3

What is crystal-sqlite3?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions