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Syntax

SHOW CONNECTIONS [ LIKE_expression ];

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Parameters

Parameter or clauseDescription
LIKE_expressionFilters the output based on names by applying pattern matching. See details in LIKE pattern matching expressions.

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Example

Here is an example of what you might see. Any sources or sinks that reference the connection will also be listed. 
SHOW CONNECTIONS;

Name             | Type        |   Properties
-----------------+-------------+----------------
connection_name  | privatelink | provider: aws
                 |             | service_name: com.amazonaws.xyz.us-east-1.abc-xyz-0000
                 |             | endpoint_id: xyz-0000
                 |             | availability_zones: ["use1-az6", "use1-az4"]
                 |             | sources: ["tcp_metrics"]
                 |             | sinks: ["sink1"]

CREATE CONNECTION

Create a connection