bit manipulation - How to use binary/bitfield literals in a MySQL statement - 


select (bin(~'101010101010101')) result; result : '1111111111111111101001000010000111000000110011111000000101001010'

is true?

i expect see result:

'1111111111111111111111111111111111111111111111111010101010101010'

help me please.

you passing string bitwise operation. these operations defined bigint integers in mysql, might unexpected results.

you should try:

select bin(~0x5555) result

or:

select bin(~b'101010101010101' ) result

results in:

'1111111111111111111111111111111111111111111111111010101010101010'

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