> ## Documentation Index
> Fetch the complete documentation index at: https://docs.e6data.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hash functions

> Compute checksums and cryptographic digests.

Compute checksums and cryptographic digests.

| Function | Type | What it does |
| - | - | - |
| [`crc32`](/query/sql/functions/hash/crc32) | Scalar | Returns the CRC-32 checksum of a string or binary value. |
| [`md5`](/query/sql/functions/hash/md5) | Being confirmed | Previous docs; being confirmed. |
| [`sha`](/query/sql/functions/hash/sha) | Scalar | Computes the SHA-1 digest of a string or binary value. |
| [`sha1`](/query/sql/functions/hash/sha1) | Scalar | Computes the SHA-1 digest of a string or binary value. |
| [`sha2`](/query/sql/functions/hash/sha2) | Scalar | Computes a SHA-2 digest using the selected bit length. |


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