CREATE USAGE ALTER DROP 数据共享使用者支持的 SQL 语句 以下数据定义语言(DDL)语句支持通过写入来共享数据:ALTER TABLE RENAME TO ALTER TABLE RENAME COLUMN TO ALTER TABLE ADD/DROP COLUMN ALTER SCHEMA RENAME TO { CREATE | DROP } SCHEMA { CREATE | DROP | SHOW } TABLE CREATE TABLE ...
如果CREATE TABLE DDL 可用,那么这是最快且首选的方法。在创建新表时,您可以指定所有表和列属性,包括主键和外键。您可以使用 SHOW TABLE 函数找到原始 DDL。 使用CREATE TABLE LIKE。 如果原始 DDL 不可用,您可以使用 CREATE TABLE LIKE 来重新创建原始表。新表继承父表的编码、分配键、排序键和 not-null 属性...
Easily view table contents or database object information via the View Contents and Show Info context menu options Redshift SQL Editor Edit SQL scripts. Run SQL queries. Auto column and auto table lookup. Supports over 20 programming languages including SQL, PHP, HTML, XML, Java, and more. ...
Types Type Comment Type, Drop TypeInfo ExternalSchemas External Schemas ExternalSchema ExternalTables External Tables ExternalTable Drop External TableData, Columns, Info, Row Count ExternalColumns ExternalColumn DBA DBA Users Create UserUsers User ...
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This will show all the log groups created for the Amazon Redshift clusters. Create a DynamoDB audit table To create your audit table, complete the following steps: On the DynamoDB console, chooseTablesin the navigation pane. ChooseCreate table. ...
Adding or modifying a primary key is no trivial task, especially on large tables under write-intensive workloads. There are three main ways to change the structure of a table: Use theALTER TABLEDDL statement, which modifies the table directly...
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SHOW SCHEMAS SHOW TABLE SHOW TABLES SHOW VIEW START TRANSACTION TRUNCATE UNLOAD UNLOAD 示例 UPDATE UPDATE 语句的示例 VACUUM SQL 函数参考 仅领导节点函数 聚合函数 ANY_VALUE APPROXIMATE PERCENTILE_DISC AVG COUNT LISTAGG MAX MEDIAN MIN PERCENTILE_CONT STDDEV_SAMP 和 STDDEV_POP SUM VAR_SAMP 和 VAR_POP...
CREATE TABLE DDL が利用できる場合、これが最も速く推奨の方法になります。新しいテーブルを作成する場合は、プライマリキーと外部キーを含むすべてのテーブルと列の属性を指定できます。SHOW TABLE 関数を使用すると、元の DDL を検索できます。