Wasp Barcode Inventory Control User Manual

Page 304

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InventoryControl Printable Help

Operator is a comparison operator used to evaluate an expression.

Comparison Operator

Meaning

=

equal

<>

not equal

>=

greater than or equal

>

greater than

<=

less than or equal

<

less than

Like

is similar to value

Not Like

is not similar to value

Is Null

no value

Is Not Null

any value

Like and Not Like are used for text pattern matching. They can only be used with plain

text fields, not with dates. The following characters, used within the text value, have a
special meaning for the Like and Not Like operators:

LIKE Operator

Meaning

Examples

_

(underscore)

matches any

single

character

LIKE '_-inch' matches
'2-inch', '3-inch', etc.

%

matches zero

or more

characters of

any value

LIKE 'Eric W%'
matches 'Eric White',
'Eric Williams', etc.

\

Escapes the

special

characters

(gives them

their normal

meaning)

LIKE '\%' matches '%'
LIKE '\\' matches a
single '\'

Value is the information you are searching for. (This may included special characters for

the Like or Not Like operators).

Logical is a Boolean operator that combines one or more filter expressions into a single

logical group:

Boolean Operator

Meaning

AND

gives you the intersection of

two conditions

OR

gives you the union of two

conditions

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