SQLiteDBAccess 1.0.3

SQLiteDBAccess

This is a lightweight sqlite access library. It allows you to easily create and access multiple different sqlite db files.

simply add/create a database via SQLiteDBAccess.Instance() This will check if there already is an instance for that file and ether create the file and return a new instance or get the already existing instance.

You can also pass a bool as 3rd attribute (default true) it determines if the file should be managed automatically or manually. If set to true the file will be opened and closed on every call. If that is to expensive for you you can pass false and open/close the file manually via OpenDBFile() and CloseDBFile().

Attention

If a method in SQLiteDBAccess is used that returns an SQLDataReader the connection will not be closed even if file management is enabled. Meaning you will have to manually free the file with CloseDBFile(yourReader). yourReader being the SQLiteDataReader that you have used. This is necessary because the connection needs to be active to use the reader.

examples:

Create/Add Database

var dbAccess = SQLiteDBAccess.SQLiteDBAccess.Instance("mydb", "/home/teddy"); // on windows path would be "C:/Users/teddy"

Note: Depending on if your file system is case sensitive creating a Database with the name mydb and Mydb will ether be the same (on non-case sensitive) or different (on case sensitive) instances and files.

Create Table

dbAccess.CreateTable("MyTable", "Id INTEGER PRIMARY KEY, MyText TEXT, MyNumber INTEGER");

Insert Into Table

var myNewText = "'hello world'";
var myNewNumber = 1337;
dbAccess.Insert("MyTable", "MyText, MyNumber", $"{myNewText}, {myNewNumber}");

Note: You will need to add '' around items which contain spaces e.g. 'hello world'.

Read Single Row From Table By Attribute

var reader = dbAccess.GetByAttribute("MyTable", "Id", "1");
if (reader.Read())
{
    Console.WriteLine($"{reader.GetName(0)}: {reader.GetInt64(0)}\n{reader.GetName(1)}: {reader.GetString(1)}\n{reader.GetName(2)}: {reader.GetInt64(2)}");
} 
dbAccess.CloseDBFile(reader);

Note: GetByAttribute() can return multiple rows. In this example a primary key is used and result.Read() is only executed once. Any one of those factors will result in a single row being returned.

Read All Rows From Table

var reader = dbAccess.GetAll("MyTable");
while (reader.Read())
{
    Console.WriteLine($"{reader.GetName(0)}: {reader.GetInt64(0)}\n{reader.GetName(1)}: {reader.GetString(1)}\n{reader.GetName(2)}: {reader.GetInt64(2)}");
} 
dbAccess.CloseDBFile(reader);

Note:

• This Nuget Package is geared more towards smaller projects and will result in a multitude of issues if used in a bigger project.
• This Nuget Package should not and was not created to be used with unsanitized user input.