BIT_XNOR

SELECT bit_xnor(5, 3);

create.select(bitXNor(5, 3)).fetch();

+----------+
| bit_xnor |
+----------+
|       -7 |
+----------+

bitXNor(5, 3)

-- ASE, AURORA_MYSQL, BIGQUERY, MARIADB, MEMSQL, MYSQL, SQLDATAWAREHOUSE, SQLSERVER, SYBASE
~((5 ^ 3))

-- AURORA_POSTGRES, COCKROACHDB, POSTGRES, REDSHIFT, VERTICA, YUGABYTEDB
~((5 # 3))

-- DB2, HANA, INFORMIX, SNOWFLAKE, TERADATA
bitnot(bitxor(5, 3))

-- DUCKDB
~xor(5, 3)

-- EXASOL
bit_not(bit_xor(5, 3))

-- FIREBIRD
bin_not(bin_xor(5, 3))

-- H2
bitxnor(5, 3)

-- HSQLDB
((0 - bitxor(5, 3)) - 1)

-- ORACLE
((0 - bitand(
  ((0 - bitand(5, 3)) - 1),
  ((5 + 3) - bitand(5, 3))
)) - 1)

-- SQLITE
~((~((5 & 3)) & (5 | 3)))

-- TRINO
bitwise_not(bitwise_xor(5, 3))

-- ACCESS, DERBY
/* UNSUPPORTED */