A common asynchronous client interface for interacting with SQL compliant database

- `Anything`
  - `Object`
    - `Basic` ...and other supertypes
      - `SQLClient` ...and other supertypes

- `SQLClient`
  - `Basic`
    - `Identifiable`
    - `Object`
      - `Anything`
  - `SQLOperations`

- `SQLClient`
  - `JDBCClient`

Initializer
`SQLClient(SQLClient unknown)`

Inherited Attributes
Attributes inherited from: `Object` `hash`, `string`

Methods
`call` | `shared actual default SQLClient call(String sql, Anything(Throwable|ResultSet) handler)` Calls the given SQL `PROCEDURE` which returns the result from the procedure. Parameters: `sql` the SQL to execute. For example `{call getEmpName}`. `handler` the handler which is called once the operation completes. It will return a `ResultSet`. Refines `SQLOperations.call`
`callWithParams` | `shared actual default SQLClient callWithParams(String sql, Array params, Array outputs, Anything(Throwable|ResultSet) handler)` Calls the given SQL `PROCEDURE` which returns the result from the procedure. The index of params and outputs are important for both arrays, for example when dealing with a prodecure that takes the first 2 arguments as input values and the 3 arg as an output then the arrays should be like:
       params = [VALUE1, VALUE2, null]
       outputs = [null, null, "VARCHAR"]
Parameters: `sql` the SQL to execute. For example `{call getEmpName (?, ?)}`. `params` these are the parameters to fill the statement. `outputs` these are the outputs to fill the statement. `handler` the handler which is called once the operation completes. It will return a `ResultSet`. Refines `SQLOperations.callWithParams`
`close` | `shared default void close()` Close the client
`close` | `shared default void close(Anything(Throwable?) handler)` Close the client and release all resources. Call the handler when close is complete. Parameters: `handler` the handler that will be called when close is complete
`getConnection` | `shared default SQLClient getConnection(Anything(Throwable|SQLConnection) handler)` Returns a connection that can be used to perform SQL operations on. It's important to remember to close the connection when you are done, so it is returned to the pool. Parameters: `handler` the handler which is called when the `JdbcConnection` object is ready for use.
`query` | `shared actual default SQLClient query(String sql, Anything(Throwable|ResultSet) handler)` Execute a single SQL statement, this method acquires a connection from the the pool and executes the SQL statement and returns it back after the execution. Parameters: `sql` the statement to execute `handler` the result handler Refines `SQLOperations.query`
`querySingle` | `shared actual default SQLOperations querySingle(String sql, Anything(Throwable|Array) handler)` Execute a one shot SQL statement that returns a single SQL row. This method will reduce the boilerplate code by getting a connection from the pool (this object) and return it back after the execution. Only the first result from the result set is returned. Parameters: `sql` the statement to execute `handler` the result handler Refines `SQLOperations.querySingle`
`querySingleWithParams` | `shared actual default SQLOperations querySingleWithParams(String sql, Array arguments, Anything(Throwable|Array) handler)` Execute a one shot SQL statement with arguments that returns a single SQL row. This method will reduce the boilerplate code by getting a connection from the pool (this object) and return it back after the execution. Only the first result from the result set is returned. Parameters: `sql` the statement to execute `arguments` the arguments `handler` the result handler Refines `SQLOperations.querySingleWithParams`
`queryWithParams` | `shared actual default SQLClient queryWithParams(String sql, Array arguments, Anything(Throwable|ResultSet) handler)` Execute a single SQL prepared statement, this method acquires a connection from the the pool and executes the SQL prepared statement and returns it back after the execution. Parameters: `sql` the statement to execute `arguments` the arguments to the statement `handler` the result handler Refines `SQLOperations.queryWithParams`
`update` | `shared actual default SQLClient update(String sql, Anything(Throwable|UpdateResult) handler)` Executes the given SQL statement which may be an `INSERT`, `UPDATE`, or `DELETE` statement. Parameters: `sql` the SQL to execute. For example `INSERT INTO table …` `handler` the handler which is called once the operation completes. Refines `SQLOperations.update`
`updateWithParams` | `shared actual default SQLClient updateWithParams(String sql, Array params, Anything(Throwable|UpdateResult) handler)` Executes the given prepared statement which may be an `INSERT`, `UPDATE`, or `DELETE` statement with the given parameters Parameters: `sql` the SQL to execute. For example `INSERT INTO table …` `params` these are the parameters to fill the statement. `handler` the handler which is called once the operation completes. Refines `SQLOperations.updateWithParams`

Inherited Methods
Methods inherited from: `Object` `equals`
Methods inherited from: `SQLOperations` `call()`, `callWithParams()`, `query()`, `querySingle()`, `querySingleWithParams()`, `queryWithParams()`, `update()`, `updateWithParams()`