SET @start_global_value = @@global.profiling;
SELECT @start_global_value;
@start_global_value 0
select @@global.profiling;
@@global.profiling 0
select @@session.profiling;
@@session.profiling 0
show global variables like 'profiling';
Variable_name Value
profiling OFF
show session variables like 'profiling';
Variable_name Value
profiling OFF
select * from information_schema.global_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING OFF
select * from information_schema.session_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING OFF set global profiling=1; set session profiling=ON;
select @@global.profiling;
@@global.profiling 1
select @@session.profiling;
@@session.profiling 1
show global variables like 'profiling';
Variable_name Value
profiling ON
show session variables like 'profiling';
Variable_name Value
profiling ON
select * from information_schema.global_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING ON
select * from information_schema.session_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING ON set global profiling=0; set session profiling=OFF;
select @@global.profiling;
@@global.profiling 0
select @@session.profiling;
@@session.profiling 0
show global variables like 'profiling';
Variable_name Value
profiling OFF
show session variables like 'profiling';
Variable_name Value
profiling OFF
select * from information_schema.global_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING OFF
select * from information_schema.session_variables where variable_name='profiling';
VARIABLE_NAME VARIABLE_VALUE
PROFILING OFF set global profiling=1.1; ERROR42000: Incorrect argument type to variable 'profiling' set global profiling=1e1; ERROR42000: Incorrect argument type to variable 'profiling' set global profiling="foo"; ERROR42000: Variable 'profiling' can't be set to the value of 'foo' SET @@global.profiling = @start_global_value;
SELECT @@global.profiling;
@@global.profiling 0
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-10)
¤
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