doris/CREATE-VIEW.md at ec5027a00a2ba66f04876947ccbc17dfc09dd56a

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Mingyu Chen 74a482ca7f [fix] fix docs build bug (#9293 )

After this PR #9272, the `docs/build_help_zip.sh` will run failed.
This PR fix this issue.
But the help module still has some parse problem, I will fix it in next PR.

This CL mainly changes:
1. fix `docs/build_help_zip.sh` error
2. remove `sql-reference-v2` to `sql-reference`
3. modify build extension github action to run `docs/build_help_zip.sh`

2022-04-28 22:19:04 +08:00

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title, language

title	language
CREATE-VIEW	en

CREATE-VIEW

Name

CREATE VIEW

Description

This statement is used to create a logical view grammar:

CREATE VIEW [IF NOT EXISTS]
 [db_name.]view_name
 (column1[ COMMENT "col comment"][, column2, ...])
AS query_stmt

illustrate:

Views are logical views and have no physical storage. All queries on the view are equivalent to the sub-queries corresponding to the view.
query_stmt is any supported SQL

Example

Create the view example_view on example_db

CREATE VIEW example_db.example_view (k1, k2, k3, v1)
AS
SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
WHERE k1 = 20160112 GROUP BY k1,k2,k3;

Create a view with a comment

CREATE VIEW example_db.example_view
(
    k1 COMMENT "first key",
    k2 COMMENT "second key",
    k3 COMMENT "third key",
    v1 COMMENT "first value"
)
COMMENT "my first view"
AS
SELECT c1 as k1, k2, k3, SUM(v1) FROM example_table
WHERE k1 = 20160112 GROUP BY k1,k2,k3;

Keywords

CREATE, VIEW

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