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28 paź 2014 · I have stored procedure in MySQL, something like the below: create procedure SP_Test (input1 varchar(20)) begin. update Table1 set Val1='Val' where country=input1; //I want to see if this update changed how many rows and. //do some specific action based on this number.
The WHERE clause, if given, specifies the conditions that identify which rows to update. With no WHERE clause, all rows are updated. If the ORDER BY clause is specified, the rows are updated in the order that is specified. The LIMIT clause places a limit on the number of rows that can be updated.
12 sie 2020 · I think you're just looking for the ROW_COUNT() function: SELECT ROW_COUNT() as `affected_rows`; It returns the number of rows affected by the previous query, so run it immediately after your CREATE, UPDATE or DELETE to get the desired total. Result: +-----+ | affected_rows | +-----+ | 3 | +-----+
The UPDATE statement is used to modify the existing records in a table. UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, ... WHERE condition; Note: Be careful when updating records in a table! Notice the . WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated.
9 lip 2009 · How can I get the number of rows affected by an UPDATE query in a Stored Procedure (SQL Server 2005), as a resultset. e.g. CREATE PROCEDURE UpdateTables AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements.
25 sty 2024 · To start with, the COUNT() function in MySQL is used to return the number of rows that match a specified condition. It’s one of the Aggregate Functions that MySQL supports, allowing users to perform a calculation on a set of values and return a single value.
Use IF...THEN...ELSE statement to execute a block of statements if a specified condition is true and an alternative block of statements if the condition is false. Use IF...THEN...ELSEIF...ELSE statement to evaluate multiple conditions sequentially and execute corresponding blocks of statements based on the first true condition, with an optional ...
