Teradata Database implements cast functionality that allows data type conversions between VARCHAR and MBR types. To convert a VARCHAR type to an MBR type, the VARCHAR must use the following format:
(xmin, ymin, xmax, ymax)
where white space can appear anywhere.
Consider the following table definitions.
CREATE TABLE sample_MBRs (skey INTEGER, shape_mbr MBR); CREATE TABLE sample_data (mbr_data VARCHAR(256));
This example performs MBR to VARCHAR data type conversion:
INSERT INTO sample_data SELECT CAST(shape_mbr as VARCHAR(256)) FROM sample_MBRs;