Fields that Do Not Contain a Specified Value

NOTMATCH

The NOTMATCH field specifier (case sensitive) allows you to find documents in which at least one instance of the specified fields contains a value that does not match the specified string.

If there are one or more instances of a particular field in the document, the document returns as long as at least one instance does not contain any of the specified strings, even if another instance of the field does match. The document does not return if all instances of the specified fields contain an exact match of one of the specified strings.

FieldText=NOTMATCH{yourStrings}:yourFields

where:

yourStrings

is one or more strings. A document returns only if at least one instance of one of yourFields contains a value that is not an exact match for these strings.

The matching is case insensitive.

FieldText queries which include commas and braces in the query have specific percent-encoding requirements. For information about percent-encoding, see FieldText.

yourFields

is one or more fields. A document returns only if it contains one of these fields, and if the value in at least one instance of the field does not exactly match any of yourStrings.

If you want to specify multiple fields, separate them with colons (there must be no space before or after a colon).

For example:

FieldText=NOTMATCH{cat}:ANIMAL

At least one instance of the ANIMAL field must have a value other than cat for the document to return as a result.

For example, if a document contains only:

#DREFIELD ANIMAL="cat" 

it does not return as a result.

However, if the document contains:

#DREFIELD ANIMAL="cat"
#DREFIELD ANIMAL="dog" 

it returns as a result, because one of the ANIMAL fields does not contain the value cat.

If you want to find documents in which the specified string is not present in any instance of the specified field, use the MATCH specifier with the Boolean operator NOT. For example, FieldText=NOT+MATCH{cat}:ANIMAL does not return any documents that have an ANIMAL field with the value cat, even if there are other ANIMAL fields with different values.

NOTSTRING

The NOTSTRING field specifier (case sensitive) allows you to find documents in which at least one instance of the specified fields contains a value that does not contain any of the specified strings as a substring.

If there are one or more instances of a particular field in the document, the document returns as long as at least one instance does not contain any of the specified strings, even if another instance of the field does contain the string. The document does not return if all instances of the specified fields contain one of the specified strings as a substring.

FieldText=STRING{yourStrings}:yourFields

where:

yourStrings

is one or more strings. A document returns only if at least one instance of one of yourFields contains a value that is not a substring of any of these strings.

FieldText queries which include commas and braces within the query have specific percent-encoding requirements. For information about percent-encoding, see FieldText.

yourFields

is one or more fields. A document returns only if it contains one of these fields, and if the value in at least one instance of the field does not contain any of yourStrings as a substring.

If you want to specify multiple fields, separate them with colons (there must be no space before or after a colon).

For example

FieldText=NOTSTRING{cat,dog}:ANIMAL:TOPIC

At least one instance of the ANIMAL or TOPIC field value must contain a value that does not contain the substring cat or dog for the document to return.

For example, if a document contains only:

#DREFIELD ANIMAL="old cat"

or

#DREFIELD TOPIC="dogs like playing catch "
#DREFIELD ANIMAL="dog" 

it does not return as a result.

However, if the document contains:

#DREFIELD TOPIC="dogs have trouble catching mice"
#DREFIELD ANIMAL="dog"
#DREFIELD ANIMAL="mouse" 

it returns as a result, because one of the ANIMAL fields does not contain the substring cat or dog.

If you want to find documents in which the specified string is not present in any instance of the specified field, use the STRING specifier with the Boolean operator NOT. For example, FieldText=NOT+STRING{cat,dog}:ANIMAL does not return any documents that have an ANIMAL field with the substring cat or dog, even if there are other ANIMAL fields with different values.

NOTWILD

The NOTWILD field specifier (case sensitive) allows you to find documents in which at least one instance of the specified field contains a value that does not match the specified Wildcard string.

If there are one or more instances of a particular field in the document, the document returns as long as at least one instance does not contain the specified string, even if another instance of the field does match. The document does not return if all instances of the specified fields contain the specified string.

If the query does not contain any Wildcard characters (? or *), the NOTWILD field specifier acts in the same way as the NOTMATCH field specifier.

FieldText=NOTWILD{yourStrings}:yourFields

where:

yourStrings

is one or more strings that contain Wildcards. A document returns only if at least one instance of one of yourFields does not contain any of these strings.

FieldText queries that include commas and braces in the query have specific percent-encoding requirements. For information about percent-encoding, see FieldText.

yourFields

is one or more fields. A document returns only if it contains one of these fields, and if the value in at least one instance of the field does not contain any of yourStrings.

If you want to specify multiple fields, separate them with colons (there must be no space before or after a colon).

For example:

FieldText=NOTWILD{passi*incarnata}:Climbers:Plants

At least one instance of the Climbers or Plants field must contain a value which does not contain a phrase that begins with passi and ends with incarnata (for example, passionflower incarnata or passiflora incarnata) for this document to return as a result.

For example, if a document contains only:

#DREFIELD Climbers="passiflora incarnata"

or

#DREFIELD Climbers="passiflora incarnata"
#DREFIELD Plants="passionflower incarnata"

it does not return as a result.

However, if the document contains:

#DREFIELD Climbers="passiflora incarnata"
#DREFIELD Plants="passionflower incarnata"
#DREFIELD Climbers="bindweed"

it returns, because one of the Climbers fields contains a value that does not match the Wildcard string passi*incarnata.

If you want to find documents in which the specified string is not present in any instance of the specified field, use the WILD specifier with the Boolean operator NOT. For example, FieldText=NOT+WILD{passi*incarnata}:Climbers does not return any documents that have a Climbers field with a phrase that begins with passi and ends with incarnata, even if there are other Climbers fields with different values.


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