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select @@global.lower_case_table_names=20;
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@@global.lower_case_table_names=20
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select @@session.lower_case_table_names;
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ERROR HY000: Variable 'lower_case_table_names' is a GLOBAL variable
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SELECT @@global.lower_case_table_names in (0,1,2);
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@@global.lower_case_table_names in (0,1,2)
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SELECT @@global.lower_case_table_names = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='lower_case_table_names';
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@@global.lower_case_table_names = VARIABLE_VALUE
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SELECT @@global.lower_case_table_names = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='lower_case_table_names';
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@@global.lower_case_table_names = VARIABLE_VALUE
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set global lower_case_table_names=1;
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ERROR HY000: Variable 'lower_case_table_names' is a read only variable
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set session lower_case_table_names=1;
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ERROR HY000: Variable 'lower_case_table_names' is a read only variable