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MySQL data insertion: Comparison of INSERT INTO table VALUES
and INSERT INTO table SET
MySQL provides two syntaxes for inserting data into tables:
INSERT INTO table VALUES ...
: This syntax explicitly specifies the value to be inserted into each column. INSERT INTO table SET
: This is MySQL-specific syntax, which assigns values to columns individually. Example:
<code class="language-sql">-- INSERT INTO table VALUES ... INSERT INTO table (a, b, c) VALUES (1, 2, 3); -- INSERT INTO table SET INSERT INTO table SET a = 1, b = 2, c = 3;</code>
Equivalence:
Both syntaxes are equivalent in terms of inserting data into tables. The first syntax conforms to the SQL standard, while the second is an extension to MySQL.
Performance:
Performance-wise, there is no significant difference between the two syntaxes. Both are equally efficient and produce the same execution plan.
Usage scenarios:
INSERT INTO table VALUES ...
: Use this syntax when you need to explicitly specify the value of each column. It is more suitable for inserting a small number of rows. INSERT INTO table SET
: Use this syntax when you need to insert multiple rows with different column values. For inserting large amounts of data, it is more convenient and concise. The above is the detailed content of INSERT INTO table VALUES vs. INSERT INTO table SET: Which MySQL Syntax Should You Use?. For more information, please follow other related articles on the PHP Chinese website!