CREATE TRIGGER ON customers FOR UPDATE AS not empty(custid)
USE accounts CREATE TRIGGER ON customer FOR UPDATE AS not empty(CustName) DELETE TRIGGER ON customer FOR BEFOREUPDATE
open database southwind use customers display triggers
open database southwind use customers list triggers
set dbcevents off
// // Database: dbcdoc // Event: dbc_afterdelete // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("After Delete in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() userlog("Deleted record number: " + etos(recno()) else userlog("JSON: " + base64_decode(cJSON)) endif userlog("End of After Delete") userlog("====================================") return .t.
// Database events are triggered by certain database operations // // Database: dbcdoc // Event: dbc_afterinsert // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("After Insert in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() for i = 1 to fldcount() if type("&(field(i))") = "G" loop endif userlog("Field: " + field(i)) userlog("Value: " + etos(&(field(i)))) endfor else userlog("JSON: " + base64_decode(cJSON)) endif userlog("End of After Insert") userlog("====================================") return .t.
// Database events are triggered by certain database operations // // Database: dbcdoc // Event: dbc_afterupdate // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("After Update in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() userlog("Updated record number: " + etos(recno()) else userlog("JSON: " +base64_decode(cJSON) endif userlog("End of After Update") userlog("====================================") return .t.
https://www.lianja.com/doc/index.php/DBC_AFTERUPDATE
// Database events are triggered by certain database operations // // Database: dbcdoc // Event: dbc_beforedelete // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("Before Delete in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() userlog("Delete record number: " + etos(recno()) else userlog("JSON: " +base64_decode(cJSON)) endif userlog("End of Before Delete") userlog("====================================") return .t.
// Database events are triggered by certain database operations // // Database: dbcdoc // Event: dbc_beforeinsert // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("Before Insert in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() for i = 1 to fldcount() if type("&(field(i))") = "G" loop endif userlog("Field: " + field(i)) userlog("Value: " + etos(&(field(i)))) endfor else userlog("JSON: " +base64_decode(cJSON)) endif userlog("End of Before Insert") userlog("====================================") return .t.
// Database events are triggered by certain database operations // // Database: dbcdoc // Event: dbc_beforeupdate // parameters cDatabase, cTable, cJSON userlog("====================================") userlog("Before Update in "+"dbcdoc database") userlog("Database: " +cDatabase) userlog("Table: " +cTable) if ! isserver() userlog("Update record number: " + etos(recno()) for i = 1 to fldcount() if type("&(field(i))") = "G" loop endif userlog("Field: " + field(i)) userlog("Curval(): " + etos(curval(field(i)))) userlog("Value: " + etos(&(field(i)))) endfor else userlog("JSON: " +base64_decode(cJSON) endif userlog("End of Before Update") userlog("====================================") return .t.
// Database event triggered by the closure of a database // dbc_closedata.prg lparameters cName, lAll close procedures return
// Database events are triggered by certain database operations // dbc_opendata.prg lparameters cName, lExcl, lRo, lValidate // ... return .T.
open database southwind alter table customers modify onupdate "p_update" alter table customers modify ondelete "p_delete" alter table customers modify oninsert "p_insert" alter table customers modify onopen "p_open" alter table customers modify onclose "p_close"
https://www.lianja.com/doc/index.php/Securing_Your_Data
Table constraint activated after a record in the table is deleted
ALTER TABLE customer; modify ONFTERDELETE "customer_afterdelete"
https://www.lianja.com/doc/index.php/ONAFTERDELETE_Table_Constraint
Table constraint activated after a record in the table is inserted
ALTER TABLE customer; modify ONFTERINSERT "customer_afterinsert"
https://www.lianja.com/doc/index.php/ONAFTERINSERT_Table_Constraint
Table constraint activated after a record in the table is updated
ALTER TABLE customer; modify ONFTERUPDATE "customer_afterupdate"
https://www.lianja.com/doc/index.php/ONAFTERUPDATE_Table_Constraint
Table constraint activated when an attempt is made to delete a record in the table
ALTER TABLE customer; modify ONDELETE "customer_ondelete" ALTER TABLE customer; modify ONBEFOREDELETE "customer_onbeforedelete"
https://www.lianja.com/doc/index.php/ONBEFOREDELETE_Table_Constraint
Table constraint activated when an attempt is made to delete a record in the table
ALTER TABLE customer; modify ONDELETE "customer_ondelete" ALTER TABLE customer; modify ONBEFOREDELETE "customer_onbeforedelete"
https://www.lianja.com/doc/index.php/ONDELETE_Table_Constraint
Table constraint activated when an attempt is made to delete a record in the table
ALTER TABLE customer; modify ONDELETE "customer_ondelete" ALTER TABLE customer; modify ONBEFOREDELETE "customer_onbeforedelete"
https://www.lianja.com/doc/index.php/ONBEFORE_Table_Constraint
Table constraint activated when an attempt is made to insert a new record into the table
ALTER TABLE customer; modify ONINSERT "customer_oninsert" ALTER TABLE customer; modify ONBEFOREINSERT "customer_onbeforeinsert"
https://www.lianja.com/doc/index.php/ONBEFOREINSERT_Table_Constraint
Table constraint activated when an attempt is made to insert a new record into the table
ALTER TABLE customer; modify ONINSERT "customer_oninsert" ALTER TABLE customer; modify ONBEFOREINSERT "customer_onbeforeinsert"
https://www.lianja.com/doc/index.php/ONINSERT_Table_Constraint
Table constraint activated when an attempt is made to update a record in the table
ALTER TABLE customer; modify ONUPDATE "customer_onupdate" ALTER TABLE customer; modify ONBEFOREUPDATE "customer_onbeforeupdate"
https://www.lianja.com/doc/index.php/ONBEFOREUPDATE_Table_Constraint
Table constraint activated when an attempt is made to update a record in the table
ALTER TABLE customer; modify ONUPDATE "customer_onupdate" ALTER TABLE customer; modify ONBEFOREUPDATE "customer_onbeforeupdate"
https://www.lianja.com/doc/index.php/ONUPDATE_Table_Constraint
Table constraint activated when the table is closed
ALTER TABLE customer; modify ONCLOSE "p_close"
https://www.lianja.com/doc/index.php/ONCLOSE_Table_Constraint
Table constraint activated when the table is opened
ALTER TABLE customer; modify ONOPEN "p_open"
https://www.lianja.com/doc/index.php/ONOPEN_Table_Constraint