final case class Command[A](sql: String, origin: Origin, encoder: Encoder[A]) extends Statement[A] with Product with Serializable
SQL and parameter encoder for a statement that returns no rows. We assume that sql
has the
same number of placeholders of the form $1
, $2
, etc., as the number of slots encoded by
encoder
, and that the parameter types specified by encoder
are consistent with the schema.
The check
methods on Session provide a means to verify this assumption.
You can construct a Command
directly, although it is more typical to use the sql
interpolator.
sql"INSERT INTO foo VALUES ($int2, $varchar)".command // Command[Short ~ String]
- sql
A SQL statement returning no rows.
- encoder
An encoder for all parameters
$1
,$2
, etc., insql
.
- Source
- Command.scala
- See also
StringContextOps for information on the
sql
interpolator.Session for information on executing a
Command
.
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Command is a contravariant functor.
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