(AU=rowling AND TI=potter) NOT (AU=rowling AND TI=phoenix)įinds items by Rowling with the word Potter in the title, but not titles by Rowling with the word Phoenix in the title. If you use multiple operators in the same search command, use parentheses to group (nest) the operations to be performed. Not - A record must match the term before the operator, but not the term after the operator, to be included in the search results.įinds only those items written by Isaac Asimov that do not have the word planets in the title.If you have a number of terms to combine with OR, type the command this way:ĪU= Or - A record can match either the term before or the term after the operator, or both, to be included in the search results.įinds all items written by Isaac Asimov and all items with the word planets in the title by any author, including Asimov.And - A record must match both the term before and the term after the operator to be included in the search results.įinds only the items written by Isaac Asimov that have the word planets in the title.The Boolean operators And, Or, and Not combine search terms: Operators link one part of a search command to another, and direct how the parts are related. Fields that require library-specific or Polaris-specific codes - For example, language, target audience, type of material.For example, when searching for a call number: CALL="641.5944 Dia" If the field typically includes spacing or punctuation, and you want to find an exact match on the entire string, enter the text within double quotation marks. Fields that are searched with string searches - A record must contain an exact match on the search characters (for example, a call number or publisher number search).For example, a search for TI=french cooking finds the title French Provincial Cooking while TI=“french cooking” does not. To retrieve only records that contain the search words in a specific order with no words in between (that is, to do a phrase search), enter the words in double quotation marks. Other words may be present, or the words may be present in different fields of the same type.
Keyword-indexed fields (for example, author, title, subject, notes) - A record must contain all the keywords entered in the field selected for search, in any order.If your library offers other databases to search, they are available to select for a Boolean search.įields that can be searched with CQL search commands fall into one of three categories: The symbol >= is the relative operator greater than or equal to. The search text for this access point is 1970. PD specifies the access point Publication Date. The search text for this access point is asimov.ĪND is the Boolean operator connecting the two conditions of this search (the author and the date). Operators (connectors) that link one part of the search with another (see Operators)Įxample: To find the works of author Asimov published in or after 1970, you type the following command:ĪU specifies the access point Author.The access points (fields) you want to search for example, author or title (see Search Access Point (Field) Codes).The search command can include the following parts: With a Boolean search, you can do complex, precise searches by typing CQL (Common Query Language) search commands.
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