# DBRow Definition
Rows of the cache's newer "database" tables - the format several UI panels (the prayer, skill
guide and other section content) migrated to. Each row belongs to a table id and holds a sparse
set of columns; a column can itself hold more than one typed value per row, and more than one
row of values (`FieldCount`).

This decoder is generic: it does not know what any table's columns mean, only how to split them
out. Interpreting a specific table's columns - which one is an icon, which is display text - is
up to the caller, worked out by inspecting real rows (see {ref}`TItemLoader` for the equivalent
on items).


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## DBRowColumn.FieldCount
```pascal
function TDBRowColumn.FieldCount(): Integer;
```
How many rows of typed values this column holds. Most columns hold exactly one.


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## DBRowColumn.Value
```pascal
function TDBRowColumn.Value(field, typeIndex: Integer): TDBRowValue;
```
The value of `typeIndex` within row `field` of this column.


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## DBRowDefinition.HasColumn
```pascal
function TDBRowDefinition.HasColumn(id: Integer): Boolean;
```
Whether column `id` was set on this row at all.


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## DBRowDefinition.Create
```pascal
function TDBRowDefinition.Create(id: Integer; const data: TByteArray): TDBRowDefinition; static;
```
Decodes a database row: the table it belongs to and every column it sets.

A column's own bytes start with its types - one cache "script var type" id per value a field of
this column holds - followed by however many fields it has, each one holding that many typed
values back to back. A string type reads as a NUL terminated string; anything else reads as a
plain 32-bit int, regardless of what the type id actually means.

Example:
```pascal
archive := CacheReader.Indices[ECacheIndex.CONFIGS].ReferenceTable.Archives.Value[EConfigArchive.DBROW];
row := TDBRowDefinition.Create(12230, archive.Files.Value[12230].Data);
```