PgDAC

TPgIsolationLevel Enumeration

Specifies the way the transactions containing database modifications are handled.

Unit

PgAccess

Syntax

TPgIsolationLevel = (pilReadCommitted, pilSerializable);

Values

Value Meaning
pilReadCommitted If the transaction contains DML that requires row locks held by another transaction, then the DML statement waits until the row locks are released. The default PostgreSQL behavior.
pilSerializable Specifies serializable transaction isolation mode as defined in the SQL92 standard. If a serializable transaction contains data manipulation language (DML) that attempts to update any resource that may have been updated in a transaction uncommitted at the start of the serializable transaction, then the DML statement fails.

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