An atomic is a non-structured value that is annotated with a type.
JSONiq defines many useful builtin atomic types. For now, let us introduce those that have a JSON counterpart. Note that JSON numbers correspond to three different types in JSONiq.
string: all JSON strings.
integer: all JSON numbers that are integers (no dot, no exponent), infinite range.
decimal: all JSON numbers that are decimals (no exponent), infinite range.
double: IEEE double-precision 64-bit floating point numbers (corresponds to JSON numbers with an exponent).
boolean: the JSON booleans true and false.
null: the JSON null.
JSONiq also offers many other types of atomics. Here is a little appetizer that showcases constructing a date and a duration (365 days), and adding them.
Example 3.6. Atomics with the types date and dayTimeDuration.
