I don't see why you'd need placeholders here.

Someday someone will (accidentally?) stuff an untrusted value into the variable that's being interpolated. Or a bad value will somehow get into the database.

Don't forget placeholder-usage comes with a price.

Optimizations should be reserved for later, when benchmarking shows the problem is in the query.

Placeholders are a good idea.

In reply to Re^2: Place holders in SQL query by Anonymous Monk
in thread Place holders in SQL query by Anonymous Monk

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