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Jun 18, 2020
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sql-statements: update create view and drop view #2939

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sql-statements: update create view and drop view
SunRunAway Jun 17, 2020
d1bd37c
Merge branch 'master' into view
yikeke Jun 17, 2020
1963dbe
Update sql-statements/sql-statement-create-view.md
SunRunAway Jun 17, 2020
09abbcd
Merge branch 'master' into view
ti-srebot Jun 18, 2020
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5 changes: 4 additions & 1 deletion sql-statements/sql-statement-create-view.md
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Expand Up @@ -98,10 +98,13 @@ ERROR 1105 (HY000): insert into view v1 is not supported now.

## MySQL compatibility

* Views in TiDB are not currently insertable or updatable.
* Currently, any view in TiDB cannot be inserted or updated (that is, `INSERT VIEW` and `UPDATE VIEW` are not supported). `WITH CHECK OPTION` is only syntactically compatible but does not take effect.
* Currently, the view in TiDB does not support `ALTER VIEW`, but you can use `CREATE OR REPLACE` instead.
* Currently, the `ALGORITHM` field is only syntactically compatible in TiDB but does not take effect. TiDB currently only supports the MERGE algorithm.

## See also

* [DROP VIEW](/sql-statements/sql-statement-drop-view.md)
* [CREATE TABLE](/sql-statements/sql-statement-create-table.md)
* [SHOW CREATE TABLE](/sql-statements/sql-statement-show-create-table.md)
* [DROP TABLE](/sql-statements/sql-statement-drop-table.md)
3 changes: 0 additions & 3 deletions sql-statements/sql-statement-drop-table.md
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Expand Up @@ -9,8 +9,6 @@ aliases: ['/docs/dev/reference/sql/statements/drop-table/']

This statement drops a table from the currently selected database. An error is returned if the table does not exist, unless the `IF EXISTS` modifier is used.

By design `DROP TABLE` will also drop views, as they share the same namespace as tables.

## Synopsis

**DropTableStmt:**
Expand Down Expand Up @@ -52,7 +50,6 @@ Query OK, 0 rows affected (0.23 sec)

## See also

* [DROP VIEW](/sql-statements/sql-statement-drop-view.md)
* [CREATE TABLE](/sql-statements/sql-statement-create-table.md)
* [SHOW CREATE TABLE](/sql-statements/sql-statement-show-create-table.md)
* [SHOW TABLES](/sql-statements/sql-statement-show-tables.md)
2 changes: 1 addition & 1 deletion sql-statements/sql-statement-drop-view.md
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Expand Up @@ -80,5 +80,5 @@ This statement is understood to be fully compatible with MySQL. Any compatibilit

## See also

* [DROP TABLE](/sql-statements/sql-statement-drop-table.md)
* [CREATE VIEW](/sql-statements/sql-statement-create-view.md)
* [DROP TABLE](/sql-statements/sql-statement-drop-table.md)