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

# alter_credential

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/alter_credential.rs#L22-L33)
pub async fn [alter\_credential](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/alter-credential.md#method.alter_credential)( \&self, credential\_name: [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), credential\_updates\_map: [HashMap](https://doc.rust-lang.org/1.98.1/std/collections/hash/map/struct.HashMap.html)\<[String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html)>, ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AlterCredentialResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Alter an existing credentialAlter the properties of an existing credential.

##### Arguments

<ul>
  <li>`credential_name` - Name of the credential to be altered. Must be an existing credential.</li>
  <li>`credential_updates_map` - Map containing the properties of the credential to be updated. Error if empty.</li>
</ul>

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/alter_credential.rs#L47-L65)
pub async fn [alter\_credential\_with\_opts](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/alter-credential.md#method.alter_credential_with_opts)( \&self, credential\_name: [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), credential\_updates\_map: [HashMap](https://doc.rust-lang.org/1.98.1/std/collections/hash/map/struct.HashMap.html)\<[String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html), [String](https://doc.rust-lang.org/1.98.1/alloc/string/struct.String.html)>, options: [AlterCredentialRequestOptions](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialRequestOptions.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AlterCredentialResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Alter an existing credentialAlter the properties of an existing credential.

##### Arguments

<ul>
  <li>`credential_name` - Name of the credential to be altered. Must be an existing credential.</li>
  <li>`credential_updates_map` - Map containing the properties of the credential to be updated. Error if empty.</li>
  <li>`options` - The optional parameters; any left unset take the server’s defaults.</li>
</ul>

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/alter_credential.rs#L68-L79)
pub async fn [alter\_credential\_raw](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/alter-credential.md#method.alter_credential_raw)( \&self, request: &[AlterCredentialRequest](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialRequest.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AlterCredentialResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Sends a pre-built [`AlterCredentialRequest`](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialRequest) to the `/alter/credential` endpoint.

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/generated/alter_credential.rs#L83-L95)
pub async fn [alter\_credential\_from\_url](https://docs.kinetica.com/content/api/rust/gpudb/struct.Kinetica/alter-credential.md#method.alter_credential_from_url)( \&self, url: &[str](https://doc.rust-lang.org/1.98.1/std/primitive.str.html), request: &[AlterCredentialRequest](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialRequest.md), ) -> [Result](https://doc.rust-lang.org/1.98.1/core/result/enum.Result.html)\<[AlterCredentialResponse](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialResponse.md), [KineticaError](https://docs.kinetica.com/content/api/rust/errors/enum.KineticaError.md)>

Sends a pre-built [`AlterCredentialRequest`](https://docs.kinetica.com/content/api/rust/generated/api/struct.AlterCredentialRequest) to a specific worker URL, bypassing HA head-node selection. Used for multi-head access.


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