MatchIndexNameString相符索引的名稱。 相符索引是轉換用以建立並儲存它所使用之索引的資料表。 若重複使用相符索引,MatchIndexName 會指定要重複使用的索引。 MatchIndexName 必須是有效的 SQL Server 識別碼名稱。 例如,如果名稱包含空格,此名稱就必須以方括號括住。 MatchIndexOptions
SQL Server提供了CREATE INDEX Transact-SQL语法,用于创建索引,其语法格式如下:创建关系索引的语法: CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column [ ASC | DESC ] [ ,...n ] ) [ INCLUDE ( column_name [ ,...n ] ) ] [ WITH ( <relational_index_option> [...
适用于:SQL ServerAzure SQL 数据库Azure SQL 托管实例Microsoft Fabric SQL 数据库 在数据库中创建新表。 备注 有关Microsoft Fabric 中仓库的引用,请访问 CREATE TABLE (Fabric 数据仓库)。 有关Azure Synapse Analytics 和 Analytics Platform System (PDW) 的参考,请访问 CREATE TABLE (Azure Synapse Analytics)...
StringBuilder(); AuditMessage.Append(String.Format("An existing order was deleted at {0}. " + "The rowguid for the order is ", subscriberName)); AuditMessage.Append(deletedDataSet.Tables[0].Rows[0]["rowguid"].ToString()); // Set the reference parameter to write the line to the log ...
Applies to: SQL Server 2022 (16.x) Azure SQL Database Azure SQL Managed InstanceAppend-only ledger tables allow only INSERT operations on your tables, which ensure that privileged users such as database administrators can't alter data through traditional Data Manipulation Language operations. Append...
Applies to:SQL Server Note While Microsoft Entra ID is thenew name for Azure Active Directory (Azure AD), to prevent disrupting existing environments, Azure AD still remains in some hardcoded elements such as UI fields, connection providers, error codes, and cmdlets. In this article, the two ...
Applies to: SQL Server Is the logical name of the backup device to which the database is backed up. The logical name must follow the rules for identifiers. If supplied as a variable (@logical_device_name_var), the backup device name can be specified either as a string constant (@logical...
For more information, see Comparing String Data. AggregationType Integer (enumeration) A value that specifies the aggregation operation to be performed on the column. This property can have one of the following values: Group by (0) Count (1) Count all (2) Countdistinct (3) Sum (4) ...
Redis 配置文件默认路径为/etc/redis/redis.conf(或通过redis-server --config-file指定)。以下是生产环境中需重点关注的基础配置: 1. 基础服务配置 2. 持久化配置(数据安全) Redis 支持两种持久化方式:RDB(快照)和AOF(日志追加),生产环境建议同时启用。
3) SSTable (Sorted String Table,排序字符串表) Sorted Strings Table (borrowed from google) is a file of key/value string pairs, sorted by keys. "An SSTable provides a persistent,ordered immutable map from keys to values, where both keys and values are arbitrary byte strings. Operations are ...