Siaqodb storable objects may have a special unique public integer property named OID. Additional members can be any of the following types:

  1. Basic Types: int, uint, short, string, ushort, byte, sbyte, long, ulong, float, double, decimal, char, bool, TimeSpan, DateTime, DateTimeOffset, Guid, enum.

  2. Complex Types: IList derived types, List[T], Arrays, jagged Arrays, Dictionary [T,V].

  3. Nested Objects: object members can include other objects with basic or complex members.

  4. Nested Lists: object members can include lists of lists or lists of objects.


public enum TestEnum { One,Two }

public class MyFullType
    public int i;
    public uint iu;
    public short s;
    public string str;
    public ushort us;
    public byte b;
    public sbyte sb;
    public long l;
    public ulong ul;
    public float f;
    public double d;
    public decimal de;
    public char c;
    public bool bo;
    public TimeSpan ts;
    public DateTime dt;
    public DateTime dtOffset;
    public Guid g;
    public TestEnum enn = TestEnum.Two;
    public List<int> listInt;
    public List<Employee> listEmployees;
    public int[] arrayInt;
    public int[][][] matrix;
    public List<List<int>> NestedList;
    public int OID { get; set; }
    public int MyProperty { get; set; }

    private int _privateProperty;
    public int PropertyAccessor 
            return _privateProperty;

            _privateProperty = value;
            if(_privateProperty == 0)
                _privateProperty = 1;


Siaqodb stores strings either as fixed character type or a variable length text block. Fixed character fields are stored sequentially along with other basic Field types. Variable length text blocks are stored as a pointer to a block stored elsewhere in the database.

The default length for fixed character Fields is 100 characters. You can change the fixed character length for a given Field by decorating the Field with the MaxLength(…) attribute:

public class MyClass
    private string myString;

When a Field contains strings that vary greatly in length it is recommended to store the Field as a variable length text block. To do this use the Text attribute as shown below:

public class MyClass
    private string myString;