Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

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Develop > Tailoring Best Practice Guide > Database (RDBMS) mapping > Array mapping options

Array mapping options

In a database dictionary record, an arrays contain one or more elements of a single data type or a structure field. If an array contains a structure element it is referred to as an array of structure. Arrays of structure contain one or more fields that can be of any data type.

You can map your array data in the following five formats.

Field in main table
Field in alias table (Deprecated)
BLOB in main table
BLOB in alias table (Deprecated)
Multi-row array table

The array mapping format you choose determines the following factors about your array data.

Can your RDBMS directly query your array data?
Can third-party tools report against your array data?
Is your array data stored with other fields in one or more main tables?
Is your array data stored separately in one or more dedicated alias tables?
Can your array support complex arrays of structure?
How efficiently does your system retrieve and write data to your array?

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