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19 lines
572 B
Text
19 lines
572 B
Text
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#
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# only global
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#
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select @@global.protocol_version;
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
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select @@session.protocol_version;
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show global variables like 'protocol_version';
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show session variables like 'protocol_version';
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select * from information_schema.global_variables where variable_name='protocol_version';
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select * from information_schema.session_variables where variable_name='protocol_version';
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#
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# show that it's read-only
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#
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
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set global protocol_version=1;
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
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set session protocol_version=1;
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