you have an error in your SQL syntax;check the manual that corresponds to your MySQL server version for the right syntax to use near (20,5) ADD COLUMN p10gc decimal(20,5) at line 1 1. 原因 从语句看 完全没有问题。 主要是看操作的编辑器,我用的mysql-front,原来类型关键字 需要 与 字段...
其中包括用户定义类型变量或函数以及用户定义函数,但不能引用 Transact-SQL 语句。 partition_number 必须存在,否则,该语句将失败。 WITH ( <single_partition_rebuild_index_option> ) SORT_IN_TEMPDB、MAXDOP、DATA_COMPRESSION和XML_COMPRESSION 是使用 (PARTITION = partition_number) 语法重新生成单个分区时可以指定...
syntaxsql コピー ALTER TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } { ALTER COLUMN column_name { [ type_schema_name. ] type_name [ ( { precision [ , scale ] } ) ] [ COLLATE collation_name ] [ NULL | NOT NULL ] } | ALTER INDEX inde...
Syntax Arguments Remarks Rebuild indexes Show 13 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric Modifies an existing table or view index (rowstore, columnstore, or XML) by disa...
Changes the properties of a SQL Server login account. Transact-SQL syntax conventions Note Microsoft Entra ID was previously known as Azure Active Directory (Azure AD). Select a product In the following row, select the product name you're interested in, and only that product's information is ...
執行 ALTER DATABASE [database] SET QUERY_STORE = OFF 會傳回警告 'QUERY_STORE=OFF' is not supported in this version of SQL Server.。 CLEAR [ ALL ] 從查詢存放區移除查詢相關的資料。 ALL 是選擇性的。 ALL 會從查詢存放區移除查詢相關的資料與...
Reimport the CLOB and SQL NCHAR columns. Restrictions: You must have SYSDBA system privilege, and you must start up the database in restricted mode (for example, with the SQL*Plus STARTUP RESTRICT command). The current character set must be a strict subset of the character set to whic...
SQL Server Azure SQL 数据库 Azure SQL 托管实例 将Transact-SQL 和查询处理行为设置为与指定的 SQL 引擎版本兼容。 有关其他 ALTER DATABASE 选项,请参阅ALTER DATABASE。 有关语法约定的详细信息,请参阅Transact-SQL 语法约定。 语法 syntaxsql ALTERDATABASEdatabase_nameSETCOMPATIBILITY_LEVEL= {170|160|150...
informationsmeddelande:SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to some database maintenance or reconfigure operations. Det här meddelandet loggas var femte minut så länge cacheminnet rensas inom det tidsinterval...
Oracle also waits for all running queries, fetches, and PL/SQL procedures in all instances that were initiated by users other than SYS or SYSTEM and that are not inside transactions to finish. If a query is carried out by multiple successive OCI fetches, Oracle does not wait for all ...