Technical Development - Tiveloper.

With COMMIT and ROLLBACK statements, you can: Ensure data consistency Preview data change before making changes permanent Group logically related operations UPDATE ... SAVEPOINT update_done; Savepoint created. INSERT ... ROLLBACK TO update_done; Rollback complete.

With COMMIT and ROLLBACK statements, you can: Ensure data consistency Preview data change before making changes permanent Group logically related operations UPDATE ... SAVEPOINT update_done; Savepoint created. INSERT ... ROLLBACK TO update_done; Rollback complete.

A database transaction consist of one of the following:DML statements that constitute one consistent change to the data One DDL statement One data control language(DCL) statement Begin when the first DML SQL statements is executed. End with one of the following events; - A COMMIT or ROLLBACK statement is issued - A DDL or DCL statement executes (automatic commit) - The user exits iSQL plus - The..

A database transaction consist of one of the following:DML statements that constitute one consistent change to the data One DDL statement One data control language(DCL) statement Begin when the first DML SQL statements is executed. End with one of the following events; - A COMMIT or ROLLBACK statement is issued - A DDL or DCL statement executes (automatic commit) - The user exits iSQL plus - The..

Removes all rows from a table, leaving the table empty and the table sturcture intact Is a data definite language(DDL) statement rather than a DML statement; cannot easily be undone. (You don't have to commit to imply the result. it will implicitly commit. == Generate no rollback information) If the table is the parent of a referential integrity constraint, you cannot truncate the table. You nee..

Removes all rows from a table, leaving the table empty and the table sturcture intact Is a data definite language(DDL) statement rather than a DML statement; cannot easily be undone. (You don't have to commit to imply the result. it will implicitly commit. == Generate no rollback information) If the table is the parent of a referential integrity constraint, you cannot truncate the table. You nee..

You can remove existing rows from a table by using the DELETE statement: DELETE[FROM]table [WHEREcondition]; If no rows are deleted, the message "0 rows deleted" is returned. DELETEFROM departments WHEREdepartment_name = 'Finance';

You can remove existing rows from a table by using the DELETE statement: DELETE[FROM]table [WHEREcondition]; If no rows are deleted, the message "0 rows deleted" is returned. DELETEFROM departments WHEREdepartment_name = 'Finance';

UPDATEtable SETcolumn = value [, column=value, ..] [WHEREcondition];

UPDATEtable SETcolumn = value [, column=value, ..] [WHEREcondition];