Gallon is a U.S. volume unit.

Liter is a unit of volume.

Ounce is a unit of weight.

Pint is a unit of volume.

Pound is a unit of weight.

SQLRollbackTransaction[conn] terminates an SQL transaction. SQLRollbackTransaction[conn, savepoint] returns to an SQLSavepoint.

SQLSetSavepoint[conn, name] creates a savepoint to be used as part of an SQL transaction.

AddPeriodical[expr, interval] adds the computation expr to the set of operations that are periodically performed automatically.

AllowRaggedArrays[True] lets you pass ragged (i.e., non rectangular) arrays to Java. AllowRaggedArrays[False] restores the default behavior.

BeginJavaBlock[] begins an evaluation block equivalent to a JavaBlock, except that it works across a larger span than the evaluation of a single expression.