MySQL Inserts: Single Multiple-Row INSERT or Multiple Single INSERTs?

Optimization Dilemma: Multiple Single INSERTs or One Multiple-Row INSERT?

When aiming to optimize data insertion into MySQL, the question arises: should developers opt for chaining INSERTs to create a single, extensive multiple-row INSERT or execute multiple distinct INSERTs? This comparative analysis delves into the efficiency considerations pertinent to each approach.

According to MySQL documentation, the time taken to insert a row comprises the following components:

• Connecting: 3
• Sending query to server: 2
• Parsing query: 2
• Inserting row: 1 (multiplied by size of row)
• Inserting indexes: 1 (multiplied by number of indexes)
• Closing: 1

It becomes evident that transmitting a single, comprehensive statement can effectively reduce overhead by 7 per insert statement. This aligns with the recommendation provided in the MySQL documentation:

"If you are inserting many rows from the same client at the same time, use INSERT statements with multiple VALUES lists to insert several rows at a time. This is considerably faster (many times faster in some cases) than using separate single-row INSERT statements."

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