Difference between revisions of "Chains"
From ARK
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| − | Chains are used in the database when you want a field to be attached to another field instead of an item. An example is the interpretation subform which contains a piece of text, a date and an action. The text-type 'interpretation' will be attached to the item and the date and action will be attached to the piece of text. | + | Chains are used in the database when you want a field to be attached to another field instead of an item. An example is the interpretation subform which contains a piece of text, a date and an action. The text-type 'interpretation' will be attached to the item and the date and action will be attached to the piece of text. [[File:chain_example.jpg|right]] |
| + | |||
| + | The tables in this image are a very simplified schematic of how the data will be stored in ARK. You can see that a chain uses a different table rather than an itemkey as the itemkey for a data fragment. This example shows data the could be displayed as | ||
| + | |||
| + | {| style="border-style: solid; border-width: 2px; border-collapse:collapse" | ||
| + | |+Pottery classification | ||
| + | |- | ||
| + | |Assemblage | ||
| + | |Class | ||
| + | |Count | ||
| + | |- | ||
| + | |1102 | ||
| + | |Black Gloss Ware | ||
| + | |3 | ||
| + | |- | ||
| + | |1103 | ||
| + | |Black Gloss Ware | ||
| + | |1 | ||
| + | |- | ||
| + | |1102 | ||
| + | |Archaic Fine Ware | ||
| + | |2 | ||
| + | |- | ||
| + | |} | ||
| + | |||
[[Category:Glossary]] | [[Category:Glossary]] | ||
Latest revision as of 15:18, 13 October 2015
Chains are used in the database when you want a field to be attached to another field instead of an item. An example is the interpretation subform which contains a piece of text, a date and an action. The text-type 'interpretation' will be attached to the item and the date and action will be attached to the piece of text.
The tables in this image are a very simplified schematic of how the data will be stored in ARK. You can see that a chain uses a different table rather than an itemkey as the itemkey for a data fragment. This example shows data the could be displayed as
| Assemblage | Class | Count |
| 1102 | Black Gloss Ware | 3 |
| 1103 | Black Gloss Ware | 1 |
| 1102 | Archaic Fine Ware | 2 |
