= (eq sign) operator
Applies to: 
Databricks SQL Databricks Runtime
Returns true if expr1 equals expr2, or false otherwise. This function is a synonym for == (eq eq sign) operator.
Syntax
expr1 = expr2
Arguments
expr1: An expression of any comparable type.expr2: An expression sharing a least common type withexpr1.
Returns
A BOOLEAN.
Examples
SQL
> SELECT 2 = 2;
true
> SELECT 1 = '1';
true
> SELECT true = NULL;
NULL
> SELECT equal_null(true, NULL);
false
> SELECT NULL = NULL;
NULL
> SELECT equal_null(NULL, NULL);
true
-- By default string comparisons are trailing space sensitive
-- This can be overridden by using the COLLATE clause
> SELECT 'hello' = 'hello ' AS default,
'hello' = 'hello ' COLLATE UTF8_BINARY AS utf8_binary,
'hello' = 'hello ' COLLATE UTF8_BINARY_RTRIM AS rtrim;
default utf8_binary rtrim
------- ----------- -----
false false true
-- By default string comparisons are trailing space sensitive
-- This can be overridden by using the COLLATE clause
> SELECT 'world ' = 'world ' AS default,
'world ' = 'world ' COLLATE UTF8_BINARY AS utf8_binary,
'world ' = 'world ' COLLATE UTF8_BINARY_RTRIM AS rtrim;
default utf8_binary rtrim
------- ----------- -----
false false true