SQL Formatter for Swift

Free online sql formatter with Swift code examples

Working with sql formatter in Swift? Our free online sql formatter helps Swift developers format, validate, and process data instantly. Below you will find Swift code examples using Custom formatter so you can achieve the same result programmatically in your own projects.

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Swift Code Example

import Foundation

func formatSQL(_ sql: String) -> String {
    let keywords = ["SELECT", "FROM", "WHERE", "JOIN", "ON",
                    "ORDER BY", "GROUP BY", "HAVING", "LIMIT",
                    "AND", "OR", "LEFT JOIN", "INNER JOIN"]
    var result = sql.uppercased()
    for keyword in keywords {
        result = result.replacingOccurrences(
            of: " \(keyword) ", with: "\n\(keyword) ")
    }
    return result.trimmingCharacters(in: .whitespacesAndNewlines)
}

let sql = "SELECT u.name, u.email FROM users u JOIN orders o ON u.id = o.user_id WHERE o.total > 100 ORDER BY o.total DESC"
print(formatSQL(sql))

Quick Setup

Library: Custom formatter
// No external dependency needed

Swift Tips & Best Practices

  • Swift has no mainstream SQL formatter library
  • For iOS/macOS apps, consider embedding a JS formatter
  • Use keyword replacement for basic formatting needs

Frequently Asked Questions

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