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HTransactionRollbackToSavepoint (Function) In french: HTransactionRetourneAuPointDeSauvegarde Rolls the transaction back to the savepoint.
MyConnection is Connection
// Start transactions
HTransactionStart(MyConnection)
// Actions A
// Declare a savepoint
HTransactionSavepoint(MyConnection, "MySavepoint")
// Actions B
// Undo all actions after the declaration of MySavepoint
HTransactionRollbackToSavepoint(MyConnection, "MySavepoint")
// Actions C
// Declare a savepoint
HTransactionSavepoint(MyConnection, "MySavepoint2")
// Actions D
// Validate (commit) transactions
// Actions A, C and D are taken into account,
// but not B actions because they are between HTransactionSavepoint()
// and HTransactionRollbackToSavepoint
HTransactionEnd(MyConnection)
// MySavepoint2 is disabled
Syntax
<Result> = HTransactionRollbackToSavepoint([<Connection>, ] <Savepoint name>)
<Result>: Boolean - True if rolled back successfully,
- False if a problem occurs. HErrorInfo returns more details about the error.
<Connection>: Character string or Connection variable Connection to an HFSQL server. This connection corresponds to: If this parameter is not specified, the current connection is used. <Savepoint name>: Character string Name of the savepoint to which the transaction is to be rolled back. If the savepoint does not exist, an error is returned. Remarks - This function must be used in a transaction.
- The corresponding SQL statement can also be used: "ROLLBACK TO SAVEPOINT identifiant".
- This function is not available:
- on HFSQL files in cluster mode,
- with files handled via a Native Connector.
Business / UI classification: Business Logic
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