Clears the specified bit in a Numeric, Varbinary, or Blob value by setting it to 0 and returns the resulting value. There is a numeric and a binary version of the syntax.
If the specified expression is not an integer, it is converted to an integer before performing the operation.
BITCLEAR(BinaryExpression [, nStartBit [, nBitCount]])
Specifies the Numeric value to clear the bit in. If the expression is not an integer, it is converted to an integer before setting the bit.
Specifies the bit position in nExpression1 to clear. nExpression2 can range from 0 to 31 with 0 located as the bit to the farthest right.
Specifies a Varbinary or Blob expression.
- [ nStartBit[, nBitCount]]
Specifies a starting zero-based number of the first bit to perform the operation as nStartBit and the number of bits to perform the operation as nBitCount.
If you do not specify nStartBit and nBitCount, the operation applies to all bits in the expression. If you specify nStartBit only, the operation applies to nStartBit only.
Numeric, Varbinary, or Blob. BITCLEAR( ) returns the specified expression without specified bit.
|В ||Copy Code|
x = 7 && 0111 binary
y = 1 && 2nd bit position (0 = 1st bit position)
? BITCLEAR(x,y) && Returns 5, 0101 binary