The personal life of mike mentzer To be clear: this is not an object-relational mapper (ORM). Those tools already exist for SQLite, and this is not one of them. Best Credit Card Mileage Offers
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First Grade Read Aloud Books There are lots of ways to create object-level abstractions to SQLite, but one common theme is that the query logic gets created in C# code...which gets compiled...which means query logic has to be known at compile/build-time. Special Relaunch Icon
Nav For My Personal Blog For [a] particular application, I needed to provide SQL at runtime. So the code will compile, begin executing in some persistent process, and await dynamic SQL execution that will only be known at some point while the app is running. Product Teaser At Events
Example Of Sales Plan For New Product Launch What this meant is that query logic encoded/compiled in C# was useless to me, which throws out all the tools that try to do that -- which is most of them. Program Launch Road Map
Content Layout Design This left me with raw SQL and the tools in System.Data.SQLite. That's a fine library, but it still means you have a lot of rote/repetitive code to write. I started writing some methods to automate some of it, and one thing led to another, and here we are. Website Blogs And Community
Read My Bio PFP So this is just some syntactic sugar around System.Data.SQLite. Painted Edge Business Cards
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// Create a new database, or open an existing database // To create it in memory instead, just don't pass anything into the constructor var db = new Database(@"C:\friends.db"); // Add a table // The table and all its columns will be created automatically, if they don't already exist // Every table will get a auto-incrementing NumberColumn named "id" automatically, unless db.AddTable(new Table("friends", new TextColumn("first_name", "NOT NULL"), new TextColumn("last_name", "NOT NULL"), new NumberColumn("age") )); // One way to add data // You need to pass in a value for every column you created above, in the same order db["friends"].AddRecordValues("Ross", "Gellar", 30); // Another way to add data // Property names map to column names db["friends"].AddRecord(new { first_name = "Monica", last_name = "Gellar", age = 28}); // Yet another way to add data // Dictionary keys map to column names db["friends"].AddRecord(new Dictionary<string, object>() { ["first_name"] = "Chandler", ["last_name"] = "Bing", ["age"] = 30 }); // Get a datareader var myFriendsDataReader = db.Query("SELECT * FROM friends"); // Get a strongly-typed dictionary of type <string, object> (the name fields will be strings, the age field will be a long) // Types are derived from the columns types used above to populate the table, NOT the actual underlying tables // Remember that every table gets an "id" column automatically, and this will be returned as a long var myFriendsDictionary = db.TypedQuery("friends"); var desiredLastName = "Gellar" var mySiblingDictionary = db.TypedQuery("friends", "last_name = @last_name", "first_name ASC", new { last_name = desiredLastName }); // Get a scalar value var numberOfOldFriends = db.GetValue<int>("SELECT count(*) FROM friends WHERE age = 30"); ); // Execute arbitrary SQL // Property names of the object should map to parameter keys db.Execute("UPDATE friends SET last_name = @last_name WHERE first_name = @first_name", new { last_name = "the Divorce Force", first_name = "Ross" });Insta Story Icon A key to understanding this library is that the object representation of a database only needs to refer to the tables and columns that you want to work with. Engagement Post Ideas For Facebook Cruise
Samples Of Business Cards You might open and work with an existing SQLite database created by some other process. If you only work with a single column in a single table, just do this: Credit Limit Vs Cash Advance Limit
var db = new Database(@"C:\existing-database.db"); db.AddTable(new Table("an-existing-table", new TextColumn("an-existing-column"))); db["an-existing-table"].AddRecordValues("my value");Product RoadMap Template Free The one table and column you want to affect is all that this library needs to know about. Since the table and column already exist, they won't be changed. There could be hundreds of other tables in the database (or hundreds of other columns in the table), and this code does not care. What Is A Business Blog
Apple Product Launce Slide Additionally, some other code somewhere else might create a Database object based on that same database file and work with an entirely different set of tables of columns. Each Database object would be completely ignorant of what the other one was doing or what structures it's working with. Tech Business Launch Event At Pool Side
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How To Create A Website With Blog Posts About Different Things If you're working with an existing database, and you know all your tables and columns already exist, you can flag the Database object to not check for them by setting the TrustBackingDatabase flag, which would make the code faster in situations where you create the Database object often. Book Blog Examples
var db = new Database("existing-database.db"); db.TrustBackingDatabase = true; db.AddTable(new Table("an-existing-table", new TextColumn("an-existing-column")));Blog Card Grid That will save you one database query for each table, and another for each column. Travel Piuctures
Follow And Mention Us In Instagram Obviously that value has to be set be before you add a table. Also, if that table doesn't actually exist, Very Bad Things will start to happen when you try to refer to it (that's the "trust" part...). All Visa Credit Cards