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  1. www.guru99.com › sql-server-if-elseSQL Server IF…ELSE Condition Statement: T-SQL Select Query ... -...

    28 de jun. de 2024 · PRINT 'ELSE STATEMENT: CONDITION IS FALSE'. Condition: FALSE. IF (1=2) PRINT 'IF STATEMENT: CONDITION IS TRUE'. ELSE. PRINT 'ELSE STATEMENT: CONDITION IS FALSE'. Assumption: Assume that you have the table as ‘Guru99’ with two columns and four rows as displayed below: We will use ‘Guru99’ table in further examples.

  2. www.geeksforgeeks.org › mysql-exists-operatorMySQL EXISTS Operator - GeeksforGeeks

    17 de jun. de 2024 · The EXISTS operator in MySQL is a powerful boolean operator used to test the existence of any record in a subquery. It returns true if the subquery yields one or more records, enabling efficient data retrieval and manipulation, particularly in large datasets. The operator is often paired with subqueries to conditionally execute parent queries.

  3. dev.mysql.com › doc › workbenchMySQL :: MySQL Workbench Manual

    Hace 6 días · This is the MySQL Workbench Reference Manual. It documents the MySQL Workbench Community and MySQL Workbench Commercial releases for versions 8.0 through 8.0.38. MySQL Workbench is developed and tested with MySQL Server 8.0. MySQL Workbench may connect to MySQL Server 8.4 and higher but some MySQL Workbench features may not function with those ...

  4. learn.microsoft.com › it-it › sqlELSE (IF...ELSE) (Transact-SQL) - SQL Server | Microsoft Learn

    12 de jun. de 2024 · Impone le condizioni per l'esecuzione di un'istruzione Transact-SQL. L'istruzione Transact-SQL ( sql_statement) che segue il boolean_expression viene eseguita se il boolean_expression restituisce TRUE. La parola chiave facoltativa ELSE è un'istruzione Transact-SQL alternativa che viene eseguita quando boolean_expression restituisce FALSE o NULL.

  5. dev.mysql.com › doc › mysql-errorsMySQL :: MySQL 8.0 Error Reference

    26 de jun. de 2024 · For help with using MySQL, please visit the MySQL Forums, where you can discuss your issues with other MySQL users. Document generated on: 2024-06-26 (revision: 78913) Table of Contents

  6. www.interviewquery.com › p › sql-count-case-whenUsing SQL COUNT() with CASE WHEN: A Comprehensive Guide

    24 de jun. de 2024 · To understand the usage of SQL’s COUNT (CASE WHEN...) in practical scenarios, let’s take a look at the statement in action. Consider the following code snippet: SELECT COUNT (CASE WHEN order_type = 'purchase' then 1 ELSE 0 END) FROM ORDERS;. In this query, we utilize the COUNT (CASE WHEN...) statement to count the number of purchases within the “orders” table.

  7. learn.microsoft.com › es-es › cppif-else (instrucción) (C++) | Microsoft Learn

    24 de jun. de 2024 · En este artículo. Una instrucción if-else controla la bifurcación condicional. Las instrucciones de if-branch se ejecutan solo si se condition evalúa como un valor distinto de cero (o true).Si el valor de condition es distinto de cero, se ejecuta la siguiente instrucción y se omite la instrucción que sigue a la instrucción else opcional.