Sql server > transact-sql. on duplicate key update". with the "on duplicate key update", when there is a duplicate key in mysql exists, the respective records will be updated (so to avoid inserting the data twice). i cannot remove the duplicated rows in mysql as it contains extra fields with user-input value.. The statement above sets the value of the c1 to its current value specified by the expression values(c1) plus 1 if there is a duplicate in unique index or primary key. mysql insert on duplicate key update example. let’s take a look at an example of using the insert on duplicate key update to understand how it works.. On duplicate key update inserts or updates a row, the last_insert_id() function returns the auto_increment value. the on duplicate key update clause can contain multiple column assignments, separated by commas..
Improving performance of insert..on duplicate key update 2 duplicate rows with a few changes in a table with a composite primary key, but only if target does not exist. Sql server 2000 equivalent for on duplicate key? ask question. up vote 4 down vote favorite. 1. is there a sql server 2000 functional equivalent to mysql's on duplicat key clause? this answer led me to look at the instead of trigger possible duplicate of does sql server offer anything like mysql's on duplicate key update – alex angas aug. I want an sql statement that will insert if a unique key does not exist, and update the record if it does for multiple records. i have attached my sql. on the final line ive just set enq_stats=3 while testing, but in the final version, i want to update with the results from the select query..
