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# Global Functions

The C Language reference includes information for the other supported languages.

C Language | C# Language | Java Language | JavaScript | Description
--- | --- | --- | --- | ---
lrvtc_column_size | vts.column_size | lrvtc.column_size | lrvtc.columnSize | Returns the number of fields that contain data in a column.
lrvtc_connect | vts.connect | lrvtc.connect | lrvtc.connect | Creates a connection to the server.
lrvtc_connect_ex | vts.connect.ex | lrvtc.connect.ex | lrvtc.connectEx | Configures HTTPS and NTLM authentication.
lrvtc_create_column | vts.create_column | lrvtc.clear_column | lrvtc.createColumn | Creates a column.
lrvtc_disconnect | vts.disconnect | lrvtc.disconnect | lrvtc.disconnect | Disconnects from the server.
lrvtc_drop_index | vts.drop_index | lrvtc.drop_index | lrvtc.dropIndex | Deletes the index on a column.
lrvtc_ensure_index | vts.ensure_index | lrvtc.ensure_index | lrvtc.ensureIndex | Creates an index on a column.

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