MySQL Forums Forum List » Newbie. However, I wrote this little script below where I find that mysql_num_rows() returns exactly the same output in the case of SELECT, as mysql_affected_rows(). Advanced Search. Hi. mysql_affected_rows() question. Can be called for UPDATE, DELETE, or INSERT statements directly to mysql_query(). Description. This function basically returns the number of affected rows in the previous SELECT, INSERT, UPDATE, REPLACE, or DELETE query. If the last query was invalid, this function will return -1. It has been closed. They wouldn't need the procedure to use the ROW_COUNT function. Posted by: Neil Young Date: May 17, 2010 11:40AM Hi There, I am trying to find the affected rows from an update using a prepared query in MySql but … Bug #23383: mysql_affected_rows() returns different values than mysql_stmt_affected_rows() Submitted: 17 Oct 2006 17:42: Modified: 30 Nov 2006 20:21 Sorry, you can't reply to this topic. If this ag is set then MySQL returns 'found rows' instead." The ROW_COUNT function is the mysql_affected_rows equivalent in MySQL.. Keep in mind that the query browser is just a development tool. Content reproduced on this site is the property of the respective copyright holders. Return Values. So I read the manual where it says to use mysql_affected_rows() for everything except SELECT and SHOW, and use mysql_num_rows() for those two, which actually return a result. It doesn't execute queries the same way a PHP or JSP script would. PHP Forums on Bytes. Need help? Studying the paragraph of the myODBC driver i've found the following phrase: "The client can't handle that MySQL returns the true value of aected rows. Post your question and get tips & solutions from a community of 464,342 IT Pros & Developers. Returns the number of affected rows by the last operation associated with mysql, if the operation was an "upsert" (INSERT, UPDATE, DELETE or REPLACE) statement, or -1 if the last query failed. mysqli_affected_rows() returns the number of rows affected by the last INSERT, UPDATE, or DELETE query associated with the provided link parameter. mysql_affected_rows() ใช้นับจำนวนแถวที่ได้รับผลกระทบจากการประมวลผลคำสั่ง INSERT, UPDATE, DELETE ไปยังฐานข้อมูล Syntax my_ulonglong mysql_affected_rows(MYSQL * mysql); mysql is a connection identifier, which was previously allocated by mysql_init() or mysql_real_connect().. Returns the number of the last UPDATE , DELETE, INSERT. compile with gcc mysql_affected_rows.c -o mysql_affected_rows `mysql_config –cflags –libs` -Wall i'm new to mysql and for now i'm only studying the manual. When using UPDATE query, MySQL will not update columns where the new value is same as the old value. New Topic. PHP uses mysql_affected_rows( ) function to find out how many rows a query changed. If the last query was a DELETE query with no WHERE clause, all of the records will have been deleted from the table but this function will return zero with MySQL versions prior to 4.1.2. Affected Rows from Update Query. Here mysql_affected_rows() returns the number of rows affected by the last INSERT, UPDATE or DELETE query associated with link_identifier, this should be called before commit. In SELECT statements, mysql_affected_rows() works like mysql_num_rows(). Returns the number of affected rows on success, and -1 if the last query failed. Description mixed mysqli_affected_rows ( object link). And -1 if the last query failed 'm new to MySQL and for now i only... Is the property of the respective copyright holders in MySQL.. Keep in mind that query... It does n't execute queries the same way a PHP or JSP script would or JSP would... 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