PG_DELETE action

Function
Deleting a row in a table.
Declaration
 PG_DELETE handleIdent_Int, pageNrIdent_Int, rowInPageIdent_Int, retCodeIdent_Int [ORAHINT hintIdent_Str]

Parameters
handleIdent_Int in Identifier of Int type (handle) of the connection with a table (returned by the action PG_CONNECT).
pgNrIdent_Int_Int in Identifier of Int type of the page, where the deleted row is placed in.
rowInPageIdent_Int in Identifier of Int type of the serial number of a row deleted on the given page.
retCodeIdent_Int out Identifier of Int type - action success.
hintIdent_Str in Expression of String type that defines Oracle SQL hint. It is used as an instruction for the performance optimizer of SQL command. The value is used without the opening and terminating characters /*+ <orahint> */.
The example is mentioned here.

Return code
The value of the parameter transHandle_Int. See the table of error codes. It is possible to get extended error information.
Description
Table must be opened with the access _DB_MODIFY. The action will delete a row given by the serial number (the identifier rowInPageIdent_Int, numbering from 1 ....) from a page with the given serial number (the identifier pageNrIdent_Int, numbering from 1 ...).

For using the function on Microsoft SQL Server platform, there must be defined the primary key or at least unique index for a table from the platform. For the platform Sybase and Oracle, the function works without these limitations.


Example
Work with a database table (actions PG_ ...).
Related topics
DB_TRANS_OPEN
DB_TRANS_COMMIT
DB_TRANS_ROLLBACK
DB_TRANS_CLOSE

PG_CONNECT
PG_DISCONNECT
PG_READ
PG_INSERT
PG_UPDATE

All database related actions.

Related pages:

Script actions

0 komentárov

Nie ste prihlásený. Akékoľvek zmeny, ktoré vykonáte, sa označia ako anonymné. Ak už máte svoj účet, pravdepodobne sa budete chcieť prihlásiť .
Obrázok CAPTCHA