SQLCANCEL()

SQLCANCEL()

Class

SQL Applications

Purpose

Request that an executing SQL statement be cancelled

Syntax

SQLCANCEL(<nStatementHandle>)

See Also

CREATE CONNECTION, SQLCOLUMNS(), SQLCOMMIT(), SQLCONNECT(), SQLDISCONNECT(), SQLEXEC(), SQLGETPROP(), SQLMORERESULTS(), SQLPREPARE(), SQLROLLBACK(), SQLSETPROP(), SQLSTRINGCONNECT(), SQLTABLES()

Description

The SQLCANCEL() function is used to request that an executing SQL statement be cancelled. It can be used to cancel any of the following functions when they are running in asynchronous mode:

• SQLCOLUMNS()
• SQLEXEC()
• SQLMORERESULTS()
• SQLTABLES()

The SQLCANCEL() function operates on the data source specified by <nStatementHandle>.

Keywords	Description
nStatementHandle	The workarea in which the gateway data source is open

Return values:

Return Value	Description
1	SQL statement was cancelled successfully
–1	Connection error
–2	Environment error

The SQLCANCEL() function is included for compatibility only. Recital gateway functions do not operate in asynchronous mode.

Example

nStatHand=SQLSTRINGCONNECT("rec@rec1:user1/pass1/usr/recital/uas/data/southwind.tcpip",.T.)
if nStatHand < 1
  dialog box [Could not connect]
else
  SQLSETPROP(nStatHand, "Asynchronous", .T.)
  SQLEXEC(nStatHand, "SELECT * from example")
  SQLCANCEL(nStathand)
endif

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer