PostgreSQL 7.4.18 Documentation
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# pg_exec

## Name

pg_exec -- send a command to the server

## Synopsis

    pg_exec conn commandString

## Description

`pg_exec` submits a command to the PostgreSQL server and returns a result. Command result handles start with the connection handle and add a period and a result number.

Note that lack of a Tcl error is not proof that the command succeeded! An error message returned by the server will be processed as a command result with failure status, not by generating a Tcl error in `pg_exec`.

## Arguments

`conn`

  The handle of the connection on which to execute the command.

`commandString`

  The SQL command to execute.

## Return Value

A result handle. A Tcl error will be returned if pgtcl was unable to obtain a server response. Otherwise, a command result object is created and a handle for it is returned. This handle can be passed to `pg_result` to obtain the results of the command.

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