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48 lines
573 B
Markdown
48 lines
573 B
Markdown
---
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slug: /en/sql-reference/aggregate-functions/reference/groupbitand
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sidebar_position: 125
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---
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# groupBitAnd
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Applies bitwise `AND` for series of numbers.
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``` sql
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groupBitAnd(expr)
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```
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**Arguments**
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`expr` – An expression that results in `UInt*` type.
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**Return value**
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Value of the `UInt*` type.
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**Example**
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Test data:
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``` text
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binary decimal
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00101100 = 44
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00011100 = 28
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00001101 = 13
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01010101 = 85
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```
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Query:
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``` sql
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SELECT groupBitAnd(num) FROM t
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```
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Where `num` is the column with the test data.
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Result:
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``` text
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binary decimal
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00000100 = 4
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```
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