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Updated on 2026-07-02 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.

  1. Create a table. 

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    DROP TABLE IF EXISTS bool_type_t1;
CREATE TABLE bool_type_t1  
(
    BT_COL1 BOOLEAN,
    BT_COL2 TEXT
) DISTRIBUTE BY HASH(BT_COL2);

  2. Insert data. 

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

  3. Query data. 

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    SELECT * FROM bool_type_t1;


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    SELECT * FROM bool_type_t1 WHERE bt_col1 = 't';

  4. Drop the table. 

    1
    		 
    DROP TABLE bool_type_t1;

Parent Topic: Data Types