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select @@global.rand_seed2;
ERROR HY000: Variable 'rand_seed2' is a SESSION variable
select @@session.rand_seed2;
@@session.rand_seed2
0
show global variables like 'rand_seed2';
Variable_name Value
show session variables like 'rand_seed2';
Variable_name Value
rand_seed2 0
select * from information_schema.global_variables where variable_name='rand_seed2';
VARIABLE_NAME VARIABLE_VALUE
select * from information_schema.session_variables where variable_name='rand_seed2';
VARIABLE_NAME VARIABLE_VALUE
RAND_SEED2 0
set session rand_seed2=1;
select @@session.rand_seed2;
@@session.rand_seed2
0
select * from information_schema.global_variables where variable_name='rand_seed2';
VARIABLE_NAME VARIABLE_VALUE
select * from information_schema.session_variables where variable_name='rand_seed2';
VARIABLE_NAME VARIABLE_VALUE
RAND_SEED2 0
set global rand_seed2=1;
ERROR HY000: Variable 'rand_seed2' is a SESSION variable and can't be used with SET GLOBAL
set session rand_seed2=1.1;
ERROR 42000: Incorrect argument type to variable 'rand_seed2'
set session rand_seed2=1e1;
ERROR 42000: Incorrect argument type to variable 'rand_seed2'
set session rand_seed2="foo";
ERROR 42000: Incorrect argument type to variable 'rand_seed2'
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