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英文字典中文字典相关资料:


  • SQL CASE Expression - W3Schools
    The SQL CASE Expression The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement) So, once a condition is true, it will stop reading and return the result
  • How to use Switch in SQL Server - Stack Overflow
    You need to change your code to something like this: @selectoneCount = CASE @Temp WHEN 1 THEN @selectoneCount + 1 WHEN 2 THEN @selectoneCount + 1 END If @temp is set to none of those values (1 or 2), then you'll get back a NULL
  • CASE (Transact-SQL) - SQL Server | Microsoft Learn
    CASE can be used in any statement or clause that allows a valid expression For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list> , IN, WHERE, ORDER BY, and HAVING
  • Understanding SQL server switch case (With Example)
    This article provides you implementation details of SQL server switch case statement and how to use it with examples
  • SQL CASE Statement - GeeksforGeeks
    The CASE statement in SQL is a conditional expression that allows you to perform conditional logic within a query It is commonly used to create new columns based on conditional logic, provide custom values, or control query outputs based on certain conditions
  • How to Use CASE statement in SQL: Explained with Examples
    The SQL CASE expression operates similar to a switch statement found in programming languages like C# or Java, allowing users to execute specific actions depending on predefined conditions By utilizing this feature, users can gain improved control over how data is presented, analyzed, and manipulated within SQL, ultimately enhancing the
  • CASE Statement in SQL Examples - SQL Server Tips
    In the T-SQL scripting language, you can use the SQL CASE statement to evaluate a condition and return one or more result expressions This SQL Tutorial will teach you when and how you can use CASE in T-SQL statements
  • SQL CASE Examples with Multiple Conditions - Database. Guide
    In this article, we’ll explore how to use the CASE statement with multiple conditions, providing simple examples that should work across most major relational database management systems (RDBMS s)
  • Understanding If Else and Switch Statements in SQL Server
    In this article, we explored the usage of if else and switch statements in SQL Server If else statements allow you to create conditional blocks to execute specific code based on conditions, while switch statements evaluate a variable against a set of possible values





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