DESCRIBE SCHEMA¶
Describes the schema. For example, lists the tables and views in the schema.
DESCRIBE can be abbreviated to DESC.
- See also:
ALTER SCHEMA , CREATE SCHEMA , DROP SCHEMA , SHOW SCHEMAS , UNDROP SCHEMA
SCHEMATA view (Information Schema)
Syntax¶
DESC[RIBE] SCHEMA <schema_name>
Parameters¶
schema_nameSpecifies the identifier of the schema to describe.
Usage notes¶
To post-process the output of this command, you can use the pipe operator (
->>) or the RESULT_SCAN function. Both constructs treat the output as a result set that you can query.For example, you can use the pipe operator or RESULT_SCAN function to select specific columns from the SHOW command output or filter the rows.
When you refer to the output columns, use double-quoted identifiers for the column names. For example, to select the output column
type, specifySELECT "type".You must use double-quoted identifiers because the output column names for SHOW commands are in lowercase. The double quotes ensure that the column names in the SELECT list or WHERE clause match the column names in the SHOW command output that was scanned.
Examples¶
This demonstrates the DESCRIBE SCHEMA command:
CREATE SCHEMA sample_schema_2;
USE SCHEMA sample_schema_2;
CREATE TABLE sample_table_1 (i INTEGER);
CREATE VIEW sample_view_1 AS
SELECT i FROM sample_table_1;
CREATE MATERIALIZED VIEW sample_mview_1 AS
SELECT i FROM sample_table_1 WHERE i < 100;
DESCRIBE SCHEMA sample_schema_2;
+-------------------------------+----------------+-------------------+
| created_on | name | kind |
|-------------------------------+----------------+-------------------|
| 2022-06-23 01:00:00.000 -0700 | SAMPLE_TABLE_1 | TABLE |
| 2022-06-23 02:00:00.000 -0700 | SAMPLE_VIEW_1 | VIEW |
| 2022-06-23 03:00:00.000 -0700 | SAMPLE_MVIEW_1 | MATERIALIZED_VIEW |
+-------------------------------+----------------+-------------------+