The 'Tag' Regular Statement

This article will cover the syntax of the ‘Tag’ regular script statement.

This statement is used to add tags to fields and tables. Tags are a way for a developer to give additional information about specific fields/ tables.

Statement syntax

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Tag [field | fields | table] [fieldlist | tablelist] [with | using] [tagname | mapname];

Field \| Fields \| Table	Keyword to specify what is to be tagged.
Fieldlist \| Tablelist	A comma separated list of fields or tables to be tagged.
With \| Using	A keyword for specifying the tag. If one tag is being applied, use ‘with’, If you are adding tags using a map, use ‘using’.
Tagname \| Mapname	If the same tag is to be given to all fields/ tables specified, give the tag name here. If you are using a map to tag fields/ tables with different tags, give the map name here.

Example

Fields in a table get tagged using a tag map.

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ITEM_DETAILS:
LOAD 
	*
FROM [lib://Public:DataFiles/ITEM_DETAILS.qvd] (qvd);
TAG_MAP:
MAPPING LOAD * INLINE [
  a,b
  id, identify
  cost, monetary
  type, string
  flavour, string
];
Tag fields using TAG_MAP;