+ | A leading plus sign indicates that this word must be present. |
- | A leading minus sign indicates that this word must not be present. |
(no operator) |
By default (when neither + nor - is specified) the word is optional, but when contained it will be rated higher. |
> < | These two operators are used to change a word's contribution to the relevance value that is assigned to a row. The > operator increases the contribution and the < operator decreases it. See the example below. |
( ) | Parentheses are used to group words into sub expressions. Parenthesized groups can be nested. |
~ | A leading tilde acts as a negation operator, causing the word's contribution to the row relevance to be negative. It's useful for marking noise words. A text that contains such a word will be rated lower than others, but will not be excluded altogether, as it would be with the - operator. |
* | An asterisk is the truncation operator. Unlike the other operators, it should be appended to the word. |
" | A phrase that is enclosed within double quote (") characters matches only text that contain the phrase literally, as it was typed. |
apple banana | Find rows that contain at least one of the two words. |
+apple +juice | Find rows that contain both words. |
+apple tree | Find rows that contain the word 'apple', but rank rows higher if they also contain 'tree'. |
+apple -tree | Find rows that contain the word 'apple' but not 'tree'. |
+apple +(>tree <strudel) | Find rows that contain the words 'apple' and 'tree', or 'apple' and 'strudel' (in any order), but rank 'apple tree' higher than 'apple strudel'. |
apple* | Find rows that contain words such as 'apple', 'apples', 'applesauce', or 'applet'. |
"some words" | Find rows that contain the exact phrase 'some words' (for example, rows that contain 'some words of wisdom' but not 'some noise words'). |
Date limits are stated using year, month and day. Several combinations are possible: – YYYY (the year only) – YYYYMM (year and month) – YYYYMMDD (full date) Additionally, all objects/publications can be searched or the spezified only. Examples: From: 200804 to: 2010 Searches documents starting at April 1, 2008 to December 31, 2010 From: 20080423 to: Searches documents starting at April 23, 2008 to today From: to:201006 Searches for documents older than July 2010 |