default length unit: 16-bit code units

BigQueryDb2 (LUW)DerbyH2MariaDBMySQLOracle DBPostgreSQLSQL ServerSQLite20052007200920112013201520172019202120232019 - 2022b2008R2 - 201711gR1 - 23.9a5.0 - 5.71.4.192 - 2.3.23210.15.1.3 - 10.17.1.09.7 - 10.5
  1. 16 bit units for national types, depends on nls_length_semantics for the other types
  2. Observed with the default character set