code: public static void surroundWithSchemaSets(List<Sql> sql, String schemaName, Database database) {
          if ((StringUtil.trimToNull(schemaName) != null) && !LiquibaseConfiguration.getInstance().getProperty(ChangeLogParserCofiguration.class, ChangeLogParserCofiguration.USE_PROCEDURE_SCHEMA).getValue(Boolean.class)) {
              String defaultSchema = database.getDefaultSchemaName();
              if (database instanceof OracleDatabase) {
                  sql.add(0, new UnparsedSql("ALTER SESSION SET CURRENT_SCHEMA=" + database.escapeObjectName(schemaName, Schema.class)));
                  sql.add(new UnparsedSql("ALTER SESSION SET CURRENT_SCHEMA=" + database.escapeObjectName(defaultSchema, Schema.class)));
              } else if (database instanceof AbstractDb2Database) {
                  sql.add(0, new UnparsedSql("SET CURRENT SCHEMA " + schemaName));
                  sql.add(new UnparsedSql("SET CURRENT SCHEMA " + defaultSchema));
              }
          }
      }
docs: Convenience method for when the schemaName is set but we don't want to parse the body