B.1. User-Defined Values
User-defined values may be used within expressions to be compared against column values. String values should be enclosed within single quotes. Date values should be enclosed within pound signs (#). Decimals and scientific notation are permissible for numeric values. For example:
"FirstName = 'John'" "Price <= 50.00" "Birthdate < #1/31/82#"
For columns that contain enumeration values, cast the value to an integer data type. For example:
"EnumColumn = 5"
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