题目中的SQL语句为`ALTER USER jinlian DEFAULT ROLL ALL;`,关键点在于语法分析: 1. **语法错误**:设置用户默认角色的正确关键字应为`DEFAULT ROLE`,而非`DEFAULT ROLL`(`ROLL`是事务回滚的关键字)。因此,该语句存在语法错误,无法执行。 2. **选项分析**: - **A**:错误。赋予角色应使用`GRANT`,而非...
在ADB中,创建全列索引index_all='Y'。GaussDB(DWS)不支持该属性修改表定义信息,DSC迁移时会将该属性删除。输入示例输出示例
对包含 Transact-SQL 语句所引用的对象(如表、视图等)的所有数据库拥有 SHOWPLAN 权限。 对于其他所有语句,如 DDL、USE database_name、SET、DECLARE、动态 SQL 等,只需要具有执行 Transact-SQL 语句的相应权限。 示例 下面两个语句使用了 SET SHOWPLAN_ALL 设置,以显示 SQL Server 在查询中分析和优化索引的方法...
假设你在 Microsoft SQL Server 2016 中将AUTOGROW_ALL_FILES属性设置为数据库的文件组,并且该文件组没有属性集。 在这种情况下,你会收到以下错误消息: 消息5045、级别16、状态3、行1The 文件组已设置 "AUTOGROW_ALL_FILES" 属性。 另一个问题是将 AUTOGROW_ALL_FILES 或 READ_ONLY属性设置为文件组时,在数据库...
Applies to:SQL Server Returns one row for each change applied to the source table within the specified log sequence number (LSN) range. If a source row had multiple changes during the interval, each change is represented in the returned result set. In addition to retur...
Most SQL database programs have their own proprietary extensions in addition to the SQL standard, but all of them support the major commands. SQL是ANSI(美国国家标准学会)标准,但是有不同版本的SQL语言。 除SQL标准外,大多数SQL数据库程序都有其专有的扩展,但它们都支持主要命令。
BuiltInStyles BuiltList BuiltTable BuiltTextField BuiltToolBar BuiltTree Bundle Bundle_de Bundle_en Bundle_es Bundle_fr Bundle_it Bundle_ja Bundle_ko Bundle_pt_BR Bundle_zh_CN Bundle_zh_TW BundleDDLGenerator BundleFactory BundleLoader BundlePropertyResolver BundleRegist...
Today, I worked on an interesting service request where our customer asked if we could capture creation and deletion of a database usingDLL Trigger for All Serversin Azure SQL Managed Instance. Besides other options that we have. In order to test this option, I ...
7-16 Example: PL/SQL - Binds of More Than 4,000 Bytes -- Inserts Not Supported Because Hex to Raw/Raw to Hex Conversion is Not Supported 7-18 Example: PL/SQL - 4,000 Byte Result Limit in Binds of More than 4,000 Bytes When Data Includes SQL Operator 7-18 Example: C (OCI) -...
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