Impala show create view

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August undefined, 2024

Witryna18 wrz 2024 · impala中的show语法（转载网上，自己整合）. 使用 SHOW DATABASES语句列出所有的数据库。. 使用 USE db name语句可以切换到指定数据 …

Impala 3.1 Change Log - The Apache Software Foundation

Witrynacollation_connection is the session value of the collation_connection system variable when the view was created. Use of SHOW CREATE VIEW requires the SHOW … Witryna7 lis 2024 · 2 Answers. Sorted by: 2. Use describe command: DESCRIBE [FORMATTED] [db_name.]table_name [.complex_col_name ...] For views it will display the text of the query from the view definition. See here: DESCRIBE. Share. Improve this answer. packer ssh config

DROP VIEW Statement - The Apache Software Foundation

WitrynaCREATE VIEW table_from_other_db AS SELECT x FROM db1.foo WHERE x IS NOT NULL; DROP VIEW table_from_other_db; USE db1; -- Create a view in a different … Witryna25 lut 2024 · 语法： CREATE VIEW [ IF NOT EXISTS ] view_name [ ( column_name [ COMMENT column_comment ], ...) ] [ COMMENT table_comment ] AS SELECT ... 3. 查看视图结构信息跟查看表结构信息一样 desc view_name; 查看到视图中的字段 desc formatted view_name; 使用这种查看，从Table Type属性中可以看到该表属于视图 4. … Witryna19 lip 2024 · To be able to execute SHOW CREATE VIEW, you need access to the view as well as the underlying table(s). In your particular example, you need to have access to both "t" and "system9999.cases". This is because SHOW CREATE VIEW will reveal the information on the underlying table(s). Hence, the need to have access to the … jersey megastore discount code

Query to show all column, table and schema names together in …

SQL Impala create partitioned table from a view - Stack Overflow

WitrynaThe SHOW CREATE VIEW, it returns a CREATE VIEW statement with column names and the original SQL statement to reproduce the view. You need the VIEW_METADATA privilege on the view and SELECT privilege on all underlying … Witryna3 lip 2014 · For a view, DESCRIBE EXTENDED or FORMATTED can be used to retrieve the view's definition. Two relevant attributes are provided: both the original view … packer sports shopWitryna16 wrz 2024 · To be able to execute SHOW CREATE VIEW, you need access to the view as well as the underlying table(s). In your particular example, you need to have … packer source code

"WitrynaThe CREATE VIEW statement can be useful in scenarios such as the following: To turn even the most lengthy and complicated SQL query into a one-liner. You can issue … " - Impala show create view

Impala show create view

DESCRIBE Statement - The Apache Software Foundation

Witryna19 lip 2024 · To be able to execute SHOW CREATE VIEW, you need access to the view as well as the underlying table (s). In your particular example, you need to have … Witryna1 sie 2013 · I am using Impala 1.4.0 and I can see partitions. From the impala-shell give the command: show partitions I have something looking like this:

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Witryna10 cze 2024 · 1.视图用CREATE VIEW语句来创建； 2.使用SHOW CREATE VIEW viewname；来查看创建视图的语句； 3.用DROP删除视图，其语法为DROP VIEW viewname； 4.更新视图时，可以先用DROP再用CREATE，也可以直接用 CREATE OR REPLACE VIEW ；如果要更新的视图不存在，则第2条更新语句会创建一个视图；如 … WitrynaIn Impala 2.3 and higher, you can specify the name of a complex type column, which takes the form of a dotted path. The path might include multiple components in the …

Witryna2 lip 2024 · From impala-shell you have commands like:. describe table_name. describe formatted table_name. describe database_name. EXPLAIN { select_query ctas_stmt … WitrynaObject ownership for tables, views and databases is enabled by default in Impala. To define owner specific privileges, go to Ranger UI and define appropriate policies on the {OWNER} user. The CREATE statements implicitly make the user running the statement the owner of the object.

Witryna23 gru 2024 · I'm trying to clean up some dev/test tables in Impala for my team, but can't seem to find a way to list out tables with their creator and the date last accessed. The show tables command simply lists out the table names. Because there are hundreds of tables, with less than a quarter belonging to our team, going through each table … Witryna28 lip 2024 · Go to Hue -> Metastore manager -> db.table -> property -> update comment. Reply. 10,103 Views. 0 Kudos. EricL. Guru. Created ‎08-02-2024 04:38 AM. ALTER TABLE test CHANGE {columname} {columnname} {datatype} comment 'test comment'; See below test case:

Witryna-- Create a view that is exactly the same as the underlying table. CREATE VIEW v1 AS SELECT * FROM t1; -- Create a view that includes only certain columns from the …

WitrynaThe SHOW CREATE VIEW, it returns a CREATE VIEW statement with column names and the original SQL statement to reproduce the view. You need the … packer ssh communicator exampleWitryna3 sty 2024 · 使用Hue创建视图. 打开Impala查询编辑器，选择上下文为my_db，并键入其中的Create View语句，然后单击执行按钮，如下面的屏幕截图所示。. 执行查询后，如果向下滚动，您可以看到在表列表中创建的名为sample的视图，如下所示。. 以上内容是否对您有帮助：. packer squareWitrynaCREATE VIEW db2.v1 AS SELECT * FROM db2.foo; -- Switch into the other database and drop the view. USE db2; DROP VIEW v1; USE db1; -- Create a view in a different database. CREATE VIEW db2.v1 AS SELECT * FROM db2.foo; -- Drop a view in the other database. DROP VIEW db2.v1; Related information: jersey met 5 day forecast