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13 kwi 2022 · I want to be able to update a table of the same schema using a "replace into" statement. In the end, I need to be able to update a large table with values that may have changed. Here is the query I am using to start off: REPLACE INTO table_name.
In this tutorial, you will learn how to use the MySQL REPLACE statement to insert data into a table or update existing data of a table.
Definition and Usage. The REPLACE () function replaces all occurrences of a substring within a string, with a new substring. Note: This function performs a case-sensitive replacement.
REPLACE works exactly like INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is inserted. See Section 15.2.7, “INSERT Statement”. REPLACE is a MySQL extension to the SQL standard.
You cannot replace into a table and select from the same table in a subquery. MySQL uses the following algorithm for REPLACE (and LOAD DATA ... REPLACE):
7 mar 2024 · REPLACE() function is a String function and can be used to replace words or characters in a given column, whereas REPLACE statement is similar to INSERT statements and can be used to INSERT or REPLACE entire rows in the MySQL table.
24 mar 2024 · Using REPLACE with the TABLE Statement in MySQL. When using the MySQL REPLACE statement to update another table based on a source table, we have the option of using a SELECT statement to select the whole table (or part of it) or the TABLE statement to select the whole table.
