<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >pg_transaction_status</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Pgtcl Reference Manual" HREF="index.html"><LINK REL="UP" TITLE="Connection Status Commands" HREF="pgtcl-ref-connstatus.html"><LINK REL="PREVIOUS" TITLE="Connection Status Commands" HREF="pgtcl-ref-connstatus.html"><LINK REL="NEXT" TITLE="pg_parameter_status" HREF="pg-parameter-status.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META NAME="creation" CONTENT="2004-11-09T00:53:06"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Pgtcl Reference Manual: The PostgreSQL Tcl Interface</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="pgtcl-ref-connstatus.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="pg-parameter-status.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="PG-TRANSACTION-STATUS" ></A >pg_transaction_status</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN746" ></A ><H2 >Name</H2 >pg_transaction_status -- Get the current in-transaction status</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN749" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >pg_transaction_status <VAR CLASS="PARAMETER" >conn</VAR ></PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN752" ></A ><H2 >Description</H2 ><P ><CODE CLASS="FUNCTION" >pg_transaction_status</CODE > returns the current status of the connection: whether it is inside a transaction block, outside a transaction block, or inside a failed transaction block. A transaction block begins with the SQL command <TT CLASS="LITERAL" >BEGIN</TT >, and ends with one of the SQL commands <TT CLASS="LITERAL" >COMMIT</TT > or <TT CLASS="LITERAL" >ROLLBACK</TT >. A failed transaction block is a transaction block after any error occurs; <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > will ignore all SQL commands until the end of the transaction block. <CODE CLASS="FUNCTION" >pg_transaction_status</CODE > allows an application to determine if it is in a transaction block or failed transaction block. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN761" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><VAR CLASS="REPLACEABLE" >conn</VAR ></DT ><DD ><P > The handle of the connection on which to report transaction status. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN769" ></A ><H2 >Return Value</H2 ><P > One of the string values in the following table: </P ><DIV CLASS="INFORMALTABLE" ><P ></P ><A NAME="PGTCL-TRANSACTION-STATUS-TABLE" ></A ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >Value</TH ><TH >Description</TH ></TR ></THEAD ><TBODY ><TR ><TD >IDLE</TD ><TD >Connection is idle, not in a transaction block.</TD ></TR ><TR ><TD >INTRANS</TD ><TD >Connection is in a (non-failed) transaction block.</TD ></TR ><TR ><TD >INERROR</TD ><TD >Connection is in a failed transaction block.</TD ></TR ><TR ><TD >UNKNOWN</TD ><TD >Connection is bad or in an unknown state.</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN791" ></A ><H2 >Notes</H2 ><P > This command uses or emulates the <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > <SPAN CLASS="APPLICATION" >libpq</SPAN > function <CODE CLASS="FUNCTION" >PQtransactionStatus</CODE >. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="pgtcl-ref-connstatus.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="pg-parameter-status.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Connection Status Commands</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="pgtcl-ref-connstatus.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >pg_parameter_status</TD ></TR ></TABLE ></DIV ></BODY ></HTML >