#[repr(u32)]
pub enum AttrConnectionPooling {
    Off,
    OnePerDriver,
    OnePerHenv,
    DriverAware,
}
Expand description

Connection pool configuration

Possible values for ConnectionPooling attribute set with SQLSetEnvAttr to define which pooling scheme will be used.

See: https://docs.microsoft.com/en-us/sql/odbc/reference/syntax/sqlsetenvattr-function

Variants

Off

Connection pooling is turned off. This is the default.

OnePerDriver

A single connection pool is supported for each driver. Every connection in a pool is associated with one driver.

OnePerHenv

A single connection pool is supported for each environment. Every connection in a pool is associated with one environment.

DriverAware

Use the connection-pool awareness feature of the driver, if it is available. If the driver does not support connection-pool awareness, DriverAware is ignored and OnePerHenv is used.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Connection pool default configuration

Returns the “default value” for a type. Read more

Performs the conversion.

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.