Insert record only if record does not already exist in table(仅当表中不存在记录时才插入记录)

SQL Server : table with foreign key to itself with cascade delete(SQL Server:带有级联删除外键的表)

T-SQL: what COLUMNS have changed after an update?(T-SQL:更新后哪些 COLUMNS 发生了变化?)

How to insert multiple rows - a loop needed?(如何插入多行 - 需要一个循环?)

Foreign key constraint - how to delete referenced record?(外键约束 - 如何删除引用的记录?)

How to insert row in table with foreign key to itself?(如何在表中插入带有外键的行?)

Assigning a Row Number in SQL Server, but grouped on a value(在 SQL Server 中分配行号，但按值分组)

Delete multiple duplicate rows in table(删除表中的多个重复行)

Is it possible to add a identity to a GROUP BY using SQL?(是否可以使用 SQL 将身份添加到 GROUP?)

Advanced tool for optimizing T-SQL?(用于优化 T-SQL 的高级工具?)

SQL Server 2008 Script to Drop PK Constraint that has a System Generated Name(用于删除具有系统生成名称的 PK 约束的 SQL Server 2008 脚本)

Combine XML from T-SQL(结合来自 T-SQL 的 XML)

What is the comparative speed of temporary tables to physical tables in SQL?(SQL中临时表与物理表的比较速度是多少?)

Sql Password Generator - 8 characters, upper and lower and include a number(Sql 密码生成器 - 8 个字符，上下并包括一个数字)

What are the advantages of a query using a derived table(s) over a query not using them?(与不使用派生表的查询相比，使用派生表的查询有哪些优势?)

Insert a row into a SQL Server table only if total count is less than a threshold(仅当总计数小于阈值时向 SQL Server 表中插入一行)

Split a value in one column to two columns(将一列中的值拆分为两列)

SQL query for combinations without repetition for top N cases(前 N 种情况下不重复组合的 SQL 查询)

SQL Server BEFORE UPDATE trigger which adds in a timestamp on a field before UPDATE execution(SQL Server BEFORE UPDATE 触发器，它在执行 UPDATE 之前在字段上添加时间戳)

Find group of records that match a certain criteria(查找符合特定条件的记录组)