select*fromdistribution..MSarticles--复制:发布的数据库对象select*fromdistribution..MSrepl_commands--复制:复制的命令行select*fromdistribution..MSrepl_errors--复制:复制错误select*fromdistribution..MSrepl_transactions--复制:事物的历史纪录select*fromdistribution..MSreplication_monitordata--复制监视器参数/刷新时间...
Data Definition Language (DDL) commands are used for defining the database structure or schema. Let's look at some DDL commands with a simple example for each command. i. CREATE In SQL, theCREATE TABLEcommand is used to create a new table in the database. For example, CREATETABLEProducts...
DDL, which stands for Data Definition Language, is a subset of SQL (Structured Query Language) commands used to define and modify the database structure. These commands are used to create, alter, and delete database objects like tables, indexes, and schemas. The primary DDL commands in SQL ...
说明如何使用 ExecuteScalar对象的 Command 方法从数据库查询中返回单个值。 使用命令修改数据 说明如何使用 Microsoft SqlClient data provider for SQL Server 执行存储过程或数据定义语言 (DDL) 语句。 另请参阅 DataAdapter 和 DataReader 连接到数据源 用于SQL Server 的 Microsoft ADO.NET反馈...
Trancate是DDL command. Truncate会重置表的identity. Delete Delete一次删除一行, 并且在transaction log中为删掉的每一行添加一条记录. 如果你想要保留identity counter, 你需要使用delete命令. 如果你想要删除表的定义以及表中的数据, 你需要使用drop table命令. ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft FabricThis article describes how to create, rebuild, or drop indexes online using SQL Server Management Studio or Transact-SQL. The ONLINE option allows concurrent user access to the underlying table or...
When executing pass-through commands against linked servers, the order of the parameter values depends on the OLE DB provider of the linked server. Most OLE DB providers bind values to parameters from left to right. If the value of a parameter is an object name, character string, or qualifie...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric This article describes how to create, rebuild, or drop indexes online using SQL Server Management Studio or Transact-SQL. The ONLINE option allows concurrent user access to the underlying table ...
DDL(Data Defination Language):数据库定义语言 建表: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATE[EXTERNAL]TABLE[IFNOTEXISTS]table_name[(col_name data_type[COMMENTcol_comment],...)][COMMENTtable_comment][PARTITIONEDBY(col_name data_type[COMMENTcol_comment],...)][CLUSTEREDBY(col_...
一、DDL 操作 DDL 大纲,让我们对Hive的 DDL 操作有一个整体认识 注:SCHEMA/DATABASE 是相同的概念,只是叫法不同而已 代码语言:javascript 代码运行次数:0 运行 AI代码解释 --创建数据库/SCHEMA,表,视图,函数,索引CREATEDATABASE/SCHEMA,TABLE,VIEW,FUNCTION,INDEX--删除数据库/SCHEMA,表,视图,索引DROPDATABASE/...