column-name The name of a column to be created or added. data-type A Vertica-supported data type. Tip When specifying the maximum column width in a CREATE TABLE statement, use the width in bytes (octets) for any of the string types. Each UTF-8 character might require four bytes, but...
ALTER TABLE column_definition (Transact-SQL) 项目 2025/01/03 20 个参与者 反馈 本文内容 语法 参数 备注 示例 相关内容 适用于: SQL Server Azure SQL 数据库 Azure SQL 托管实例 Microsoft Fabric 中的仓库 指定使用ALTER TABLE添加到表中的列的属性。
column_name [ type_schema_name. ] type_name [ ( { precision [ , scale ] | max | [ { CONTENT | DOCUMENT } ] xml_schema_collection } ) ] [ FILESTREAM ] [ [ CONSTRAINT constraint_name ] DEFAULT constant_expression [ WITH VALUES ] | IDENTITY [ (seed , increment ) ] [ NOT FOR ...
<column_definition>::=<column_name><data_type>[<column_attributes>] |<column_name><domain_name>[<column_attributes>] Explanation If the column attribute (column_attributes)[PRIMARY] KEYis specified, theCREATE TABLE statementmust not contain akey definition. ...
Britannica Dictionary definition of COLUMN [count] 1 : a long post made of steel, stone, etc., that is used as a support in a building a facade with marble columns 2 a : a group of printed or written items (such as numbers or words) shown one under the other down a page...
column_name <data_type> [ FILESTREAM ] [ COLLATE collation_name ] [ NULL | NOT NULL ] [ [ CONSTRAINT constraint_name ] DEFAULT constant_expression [ WITH VALUES ] | IDENTITY [ ( seed , increment ) ] [ NOT FOR REPLICATION ] ] [ ROWGUIDCOL ] [ SPARSE ] [ ENCRYPTED WITH ( COLUMN_...
The ROWGUIDCOL column be dropped only after the last FILESTREAM column is dropped. When the FILESTREAM storage attribute is specified for a column, all values for that column are stored in a FILESTREAM data container on the file system. For an example that shows how to use column definition,...
1. 列定义 ...llating函数,如果没有显示定义,默认为BINARY。列定义(column definition)的COLLATE子句用来定义列的替代(alternati… www.cnblogs.com|基于11个网页 2. 字段定义 字段定义(column definition) 可用的选项:NOT NULL 或 NULL 来定义字段不能包括 NULL (NOT NULL) 或可以包括 NULL (NU… ...
column definition 英 [ˈkɒləm ˌdefɪˈnɪʃn] 美 [ˈkɑːləm ˌdefɪˈnɪʃn]网络 列定义; 字段定义; 列的定义
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