4D v13.4literal |
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4D v13.4
literal
literal
A literal is a data type consisting of either an int_number (integer), a fractional_number (fraction), an sql_string or a hexadecimal_number. Hexadecimal notation (introduced in 4D 12.1) can express any type of data represented as bytes. A byte is always defined by two hexadecimal values. To indicate the use of this notation in an SQL command, you must simply use the standard SQL syntax for hexadecimal values:
For example, for the decimal value 15, you can write X'0f'. You can set a blank value (zero byte) by writing X''. Note: The SQL EXPORT DATABASE and SQL EXPORT SELECTION commands export binary data in hexadecimal format when these data are embedded in the main export file. |
PROPERTIES
Product: 4D INDEX SEE ALSO |
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