-- Skipping the column list, but keeping the values in orderINSERTdbo.ProductsVALUES(75,'Tire Bar',NULL,'Tool for changing tires.')GO 只要是在預設的結構描述中存取及變更資料表,就可以省略結構描述名稱。 因為ProductDescription資料行可以接受 Null 值及無值,所以在陳述式中便可以完全省略ProductDescription...
百度试题 题目删除数据库使用的T-SQL语句是( ) A. CREATE DATABASE B. ALTER DATABASE C. DROP DATABASE D. DELETE DATABASE 相关知识点: 试题来源: 解析 C.DROP DATABASE 反馈 收藏
【单选题】删除数据库使用的 T-SQL 语句是()A. create databas B. alter database C. drop database D. dele
-- Skipping the column list, but keeping the values in orderINSERTdbo.ProductsVALUES(75,'Tire Bar',NULL,'Tool for changing tires.')GO 只要在默认架构中访问和更改表,架构名称就是可选的。 由于ProductDescription列允许 Null 值,而且没有提供值,因此可以从语句中完全删除ProductDescription列的名称和值。
dynamic SQL to list all tables in a database with row count for each table dynamic sql with CTE and temp table Dynamic SQL with In Clause Dynamic wrapping column names in square brackets Dynamically checking job status with T-SQL Dynamically create variable names in TSQL Dynamically set IDENTITY...
使用T-SQL语句为某数据库增加一个事务日志文件,语法正确的是:()。A.LTERDATABASE数据库名ADDFILEB.ALTERDATABASE数据库名ADDLOG
Checking that option turns it on to view system objects, or you can choose to turn it off and keep your table list view simpler and easier to read. Parsing a Table's Columns The syscolumns table provides much of the necessary metadata information, such as the column name, ID, length, ...
In SQL Server, all table constraints are database objects, just like tables, views, stored procedures, functions, and so on. Therefore, constraints must have unique names across the database. But because every table constraint is scoped to an individual table, it makes sense to adopt a naming...
Insert data using Transact-SQL You have been asked to create new objects to track the organization's supply chain, so you need to add a set of objects for your application. In this example, you'll create a single object in a new schema. You can add more tables to fully normalize the...
SQL Server Yukon maintains a linked list in tempdb that tracks changes to rows and constructs an older, committed version of data for readers. This isolation is useful for optimistic locking, where UPDATE conflicts are not common. If Process 1 retrieves data and later attempts to modify it, ...