Skye  Torp

Skye Torp

1661980680

Mysql Swift: A Type Safe MySQL Client for Swift

mysql-swift

This library is obsolete and not maintained. Use MySQLNIO instead. 

MySQL client library for Swift. This is inspired by Node.js' mysql.

  • Based on libmysqlclient
  • Raw SQL query
  • Simple query formatting and escaping (same as Node's)
  • Mapping queried results to Codable structs or classes

Note: No asynchronous I/O support currently. It depends libmysqlclient.

// Declare a model

struct User: Codable, QueryParameter {
    let id: Int
    let userName: String
    let age: Int?
    let status: Status
    let createdAt: Date
    
    enum Status: String, Codable {
        case created = "created"
        case verified = "verified"
    }
    
    private enum CodingKeys: String, CodingKey {
        case id
        case userName = "user_name"
        case age
        case status = "status"
        case createdAt = "created_at"
    }
}
    
// Selecting
let nameParam = "some one"
let ids: [QueryParameter] = [1, 2, 3, 4, 5, 6]
let optionalInt: Int? = nil
let rows: [User] = try conn.query("SELECT id,user_name,status,status,created_at FROM `user` WHERE (age > ? OR age is ?) OR name = ? OR id IN (?)", [50, optionalInt, nameParam, QueryArray(ids)] ])

// Inserting
let age: Int? = 26
let user = User(id: 0, userName: "novi", age: age, status: .created, createdAt: Date())
let status = try conn.query("INSERT INTO `user` SET ?", [user]) as QueryStatus
let newId = status.insertedId

// Updating
let tableName = "user"
let defaultAge = 30
try conn.query("UPDATE ?? SET age = ? WHERE age is NULL;", [tableName, defaultAge])

Requirements

  • Swift 5.0 or later
  • MariaDB or MySQL Connector/C (libmysqlclient) 2.2.3 or later

macOS

Install pkg-config .pc file in cmysql or cmysql-mariadb.

# cmysql
$ brew tap novi/tap
$ brew install novi/tap/cmysql

# cmysql-mariadb
$ brew tap novi/tap
$ brew install novi/tap/cmysqlmariadb

Ubuntu

$ sudo apt-get install libmariadbclient-dev

Installation

Swift Package Manager

  • Add mysql-swift to Package.swift of your project.
// swift-tools-version:5.2
import PackageDescription

let package = Package(
    ...,
    dependencies: [
        .package(url: "https://github.com/novi/mysql-swift.git", .upToNextMajor(from: "0.9.0"))
    ],
    targets: [
        .target(
            name: "YourAppOrLibrary",
            dependencies: [
                // add a dependency
                .product(name: "MySQL", package: "mysql-swift")
            ]
        )
    ]
)

Usage

Connection & Querying

  1. Create a pool with options (hostname, port, password,...).
  2. Use ConnectionPool.execute(). It automatically get and release a connection.
let option = Option(host: "your.mysql.host"...) // Define and create your option type
let pool = ConnectionPool(option: option) // Create a pool with the option
let rows: [User] = try pool.execute { conn in
    // The connection `conn` is held in this block
    try conn.query("SELECT * FROM users;") // And it returns result to outside execute block
}

Transaction

let wholeStaus: QueryStatus = try pool.transaction { conn in
    let status = try conn.query("INSERT INTO users SET ?;", [user]) as QueryStatus // Create a user
    let userId = status.insertedId // the user's id
    try conn.query("UPDATE info SET some_value = ? WHERE some_key = 'latest_user_id' ", [userId]) // Store user's id that we have created the above
}
wholeStaus.affectedRows == 1 // true

Download Details:

Author: novi
Source code: https://github.com/novi/mysql-swift

License: MIT license
#swift #mysql 

What is GEEK

Buddha Community

Mysql Swift: A Type Safe MySQL Client for Swift
Joe  Hoppe

Joe Hoppe

1595905879

Best MySQL DigitalOcean Performance – ScaleGrid vs. DigitalOcean Managed Databases

HTML to Markdown

MySQL is the all-time number one open source database in the world, and a staple in RDBMS space. DigitalOcean is quickly building its reputation as the developers cloud by providing an affordable, flexible and easy to use cloud platform for developers to work with. MySQL on DigitalOcean is a natural fit, but what’s the best way to deploy your cloud database? In this post, we are going to compare the top two providers, DigitalOcean Managed Databases for MySQL vs. ScaleGrid MySQL hosting on DigitalOcean.

At a glance – TLDR
ScaleGrid Blog - At a glance overview - 1st pointCompare Throughput
ScaleGrid averages almost 40% higher throughput over DigitalOcean for MySQL, with up to 46% higher throughput in write-intensive workloads. Read now

ScaleGrid Blog - At a glance overview - 2nd pointCompare Latency
On average, ScaleGrid achieves almost 30% lower latency over DigitalOcean for the same deployment configurations. Read now

ScaleGrid Blog - At a glance overview - 3rd pointCompare Pricing
ScaleGrid provides 30% more storage on average vs. DigitalOcean for MySQL at the same affordable price. Read now

MySQL DigitalOcean Performance Benchmark
In this benchmark, we compare equivalent plan sizes between ScaleGrid MySQL on DigitalOcean and DigitalOcean Managed Databases for MySQL. We are going to use a common, popular plan size using the below configurations for this performance benchmark:

Comparison Overview
ScaleGridDigitalOceanInstance TypeMedium: 4 vCPUsMedium: 4 vCPUsMySQL Version8.0.208.0.20RAM8GB8GBSSD140GB115GBDeployment TypeStandaloneStandaloneRegionSF03SF03SupportIncludedBusiness-level support included with account sizes over $500/monthMonthly Price$120$120

As you can see above, ScaleGrid and DigitalOcean offer the same plan configurations across this plan size, apart from SSD where ScaleGrid provides over 20% more storage for the same price.

To ensure the most accurate results in our performance tests, we run the benchmark four times for each comparison to find the average performance across throughput and latency over read-intensive workloads, balanced workloads, and write-intensive workloads.

Throughput
In this benchmark, we measure MySQL throughput in terms of queries per second (QPS) to measure our query efficiency. To quickly summarize the results, we display read-intensive, write-intensive and balanced workload averages below for 150 threads for ScaleGrid vs. DigitalOcean MySQL:

ScaleGrid MySQL vs DigitalOcean Managed Databases - Throughput Performance Graph

For the common 150 thread comparison, ScaleGrid averages almost 40% higher throughput over DigitalOcean for MySQL, with up to 46% higher throughput in write-intensive workloads.

#cloud #database #developer #digital ocean #mysql #performance #scalegrid #95th percentile latency #balanced workloads #developers cloud #digitalocean droplet #digitalocean managed databases #digitalocean performance #digitalocean pricing #higher throughput #latency benchmark #lower latency #mysql benchmark setup #mysql client threads #mysql configuration #mysql digitalocean #mysql latency #mysql on digitalocean #mysql throughput #performance benchmark #queries per second #read-intensive #scalegrid mysql #scalegrid vs. digitalocean #throughput benchmark #write-intensive

Skye  Torp

Skye Torp

1661980680

Mysql Swift: A Type Safe MySQL Client for Swift

mysql-swift

This library is obsolete and not maintained. Use MySQLNIO instead. 

MySQL client library for Swift. This is inspired by Node.js' mysql.

  • Based on libmysqlclient
  • Raw SQL query
  • Simple query formatting and escaping (same as Node's)
  • Mapping queried results to Codable structs or classes

Note: No asynchronous I/O support currently. It depends libmysqlclient.

// Declare a model

struct User: Codable, QueryParameter {
    let id: Int
    let userName: String
    let age: Int?
    let status: Status
    let createdAt: Date
    
    enum Status: String, Codable {
        case created = "created"
        case verified = "verified"
    }
    
    private enum CodingKeys: String, CodingKey {
        case id
        case userName = "user_name"
        case age
        case status = "status"
        case createdAt = "created_at"
    }
}
    
// Selecting
let nameParam = "some one"
let ids: [QueryParameter] = [1, 2, 3, 4, 5, 6]
let optionalInt: Int? = nil
let rows: [User] = try conn.query("SELECT id,user_name,status,status,created_at FROM `user` WHERE (age > ? OR age is ?) OR name = ? OR id IN (?)", [50, optionalInt, nameParam, QueryArray(ids)] ])

// Inserting
let age: Int? = 26
let user = User(id: 0, userName: "novi", age: age, status: .created, createdAt: Date())
let status = try conn.query("INSERT INTO `user` SET ?", [user]) as QueryStatus
let newId = status.insertedId

// Updating
let tableName = "user"
let defaultAge = 30
try conn.query("UPDATE ?? SET age = ? WHERE age is NULL;", [tableName, defaultAge])

Requirements

  • Swift 5.0 or later
  • MariaDB or MySQL Connector/C (libmysqlclient) 2.2.3 or later

macOS

Install pkg-config .pc file in cmysql or cmysql-mariadb.

# cmysql
$ brew tap novi/tap
$ brew install novi/tap/cmysql

# cmysql-mariadb
$ brew tap novi/tap
$ brew install novi/tap/cmysqlmariadb

Ubuntu

$ sudo apt-get install libmariadbclient-dev

Installation

Swift Package Manager

  • Add mysql-swift to Package.swift of your project.
// swift-tools-version:5.2
import PackageDescription

let package = Package(
    ...,
    dependencies: [
        .package(url: "https://github.com/novi/mysql-swift.git", .upToNextMajor(from: "0.9.0"))
    ],
    targets: [
        .target(
            name: "YourAppOrLibrary",
            dependencies: [
                // add a dependency
                .product(name: "MySQL", package: "mysql-swift")
            ]
        )
    ]
)

Usage

Connection & Querying

  1. Create a pool with options (hostname, port, password,...).
  2. Use ConnectionPool.execute(). It automatically get and release a connection.
let option = Option(host: "your.mysql.host"...) // Define and create your option type
let pool = ConnectionPool(option: option) // Create a pool with the option
let rows: [User] = try pool.execute { conn in
    // The connection `conn` is held in this block
    try conn.query("SELECT * FROM users;") // And it returns result to outside execute block
}

Transaction

let wholeStaus: QueryStatus = try pool.transaction { conn in
    let status = try conn.query("INSERT INTO users SET ?;", [user]) as QueryStatus // Create a user
    let userId = status.insertedId // the user's id
    try conn.query("UPDATE info SET some_value = ? WHERE some_key = 'latest_user_id' ", [userId]) // Store user's id that we have created the above
}
wholeStaus.affectedRows == 1 // true

Download Details:

Author: novi
Source code: https://github.com/novi/mysql-swift

License: MIT license
#swift #mysql 

Houston  Sipes

Houston Sipes

1600430400

10 Free Online Resources To Learn Swift Language

Swift is a fast and efficient general-purpose programming language that provides real-time feedback and can be seamlessly incorporated into existing Objective-C code. This is why developers are able to write safer, more reliable code while saving time. It aims to be the best language that can be used for various purposes ranging from systems programming to mobile as well as desktop apps and scaling up to cloud services.

Below here, we list down the 10 best online resources to learn Swift language.

(The list is in no particular order)

#developers corner #free online resources to learn swift language #learn swift #learn swift free #learn swift online free #resources to learn swift #swift language #swift programming

Top Swift Development Companies | Top Swift Developers - TopDevelopers.co

A thoroughly researched list of top Swift developers with ratings & reviews to help find the best Swift development companies around the world.

#swift development service providers #best swift development companies #top swift development companies #swift development solutions #top swift developers #swift

Hire Dedicated Swift Developers

Want to create a native iOS application for your Startup?

Hire Dedicated Swift Developers for end-to-end services like development, migration, upgrade, testing, and support & maintenance. Trust HourlyDeveloper.io our Swift development team for iOS device apps that are high on performance and security.

Consult with experts:- https://bit.ly/2C5M6cz

#hire dedicated swift developers #swift developers #swift development company #swift development services #swift development #swift