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Updated on 2024-09-03 GMT+08:00
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Boolean Type

Table 1 Boolean type

Name

Description

Storage Space

Value

BOOLEAN

Boolean type

1 byte
  • true
  • false
  • null (unknown)

Valid literal values for the "true" state are:

TRUE, 't', 'true', 'y', 'yes', '1'

Valid literal values for the "false" state include:

FALSE, 'f', 'false', 'n', 'no', '0'

TRUE and FALSE are standard expressions, compatible with SQL statements.

Examples

Data type boolean is displayed with letters t and f.

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--Create a table.
CREATE TABLE bool_type_t1  
(
    BT_COL1 BOOLEAN,
    BT_COL2 TEXT
) DISTRIBUTE BY HASH(BT_COL2);

--Insert data.
INSERT INTO bool_type_t1 VALUES (TRUE, 'sic est');

INSERT INTO bool_type_t1 VALUES (FALSE, 'non est');

--View data.
SELECT * FROM bool_type_t1;
Figure 1 Viewing the result 
SELECT * FROM bool_type_t1 WHERE bt_col1 = 't';
Figure 2 Viewing the result 
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2
 
-- Delete the tables:
DROP TABLE bool_type_t1;
Parent topic: Data Types