Combining Search terms using Boolean Operators
To combine search terms in the Basic Search the Boolean operators AND, OR, NOT can be used.
Note: The operators AND, OR, and NOT must be entered in English using capital letters.
AND |
Finds documents containing all of the search terms joined with AND |
OR |
Finds documents containing at least one of the search terms joined by OR |
NOT |
Finds documents containing the search term preceding NOT but not containing the search term following NOT |
When more than one search term is entered without a combination operator, the search terms are automatically joined with AND.
Examples:
Combining search terms in the same search category:
AND-combination
When no operator is entered, the terms in the entry field are automatically connected with AND. The following two examples will produce the same results list:
General Index: Berlin Polizei
General Index: Berlin AND Polizei
Alternatively you can also select the same search category in tow different lines of the search form. To connect the two lines, please use the operator at the beginning of the second line.
General Index: Berlin
AND General Index: Polizei
OR-combination
Use the operator OR when you are searching for documents that contain at least one of your search terms.
Geographical Index: Leningrad OR "St. Petersburg"
Alternatively you can also select the same search category in tow different lines of the search form. To connect the two lines, please use the operator at the beginning of the second line.
Geographical Index: Leningrad
OR Geographical Index: "St. Petersburg"
NOT-combination
Use the NOT operator when you want to exclude certain terms.
Persons / Names: Herzfelde NOT Heartfield
Alternatively you can also select the same search category in tow different lines of the search form. To connect the two lines, please use the operator at the beginning of the second line.
Persons / Names: Herzfelde
NOT Persons / Names: Heartfield
Combining search terms in different search categories:
AND-combination
Use the operator AND to find documents containing all of the search terms.
Fulltext: Attentat*
AND Persons / Names: Stauffenberg
(Note: "Attentat*" with a truncation with an asterisk finds the terms "Attentat" and "Attentats")
OR-combination
Use the operator OR to
fiond documents containing at least one of your search terms.
Persons
/ Names: "Scholl Sophie"
OR Subjacts : "Weiße Rose"
NOT-combination
Using the operator NOT you will find documents containing the first term but not the second term.
Subjects: Arbeitsdienst
NOT Geographical Index: Schlesien
A phrase consists of several words enclosed in quotation marks, designating a prescribed expression or a specified word order. Thus a phrase search will only find records containing the search terms occurring in the order in which they were entered.
Examples:
"im Braunen Haus" or
"Rede auf dem NSDAP Parteitag" or
"Blut und Boden"
Fulltext Search / Fuzzy Search
Index Publication Title: specific search terms for a publication search
Index Document Group / Document Type