8.3. Execute batch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.4. Release batch . . . . . . . 29 8.5. Cancel batch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 8.6. Sync batch . . . . . . . of operations. Unless otherwise indicated, a client request must be flushed to the server for processing. For some operations the flush can be deferred, so it is sent together with a different operation

3 unless specified otherwise. Chapter 2. SQL Language Structure 20 2.1.3. Error Conditions Processing of every SQL statement either completes successfully or fails due to a specific error condition traditional relational model. Supporting arrays in the DBMS could make it easier to solve some data-processing tasks involving large sets of similar data. Arrays in Firebird are stored in BLOB of a specialized are used to write queries of the following type: WHERE col1 = :param1 OR :param1 IS NULL After processing, at the API level, the query will look like this: Chapter 3. Data Types and Subtypes 56 WHERE

interact with the Firebird database. Some SET commands can be incorporated in DDL scripts to perform batch executions within isql. It also accepts DDL, DML and console commands. The isql utility can be used session; directly from the command line; and as a non-interactive session, using a shell script or batch file. Different tasks may be performed in each of the modes, as illustrated below: • An interactive interactively to: ◦ Create, update, query, and drop data or metadata. ◦ Input a script file containing a batch of SQL statements in sequence without prompting. ◦ Add and modify data. ◦ Grant user permissions

GEN_ID(gen_spTestProgress,1); IF (GEN_ID(gen_spTestStop,0)>0) THEN Exit; (...normal processing here...) end END^ Just a rough sketch, but you should get the idea. From the client, you can What else to do with generators 16 monthly reports that are generated by a single module run in batch mode, this can be acceptable — as usual, it depends on your needs. If you want to use this technique

3 unless specified otherwise. Chapter 2. SQL Language Structure 18 2.1.3. Error Conditions Processing of every SQL statement either completes successfully or fails due to a specific error condition traditional relational model. Supporting arrays in the DBMS could make it easier to solve some data-processing tasks involving large sets of similar data. Arrays in Firebird are stored in BLOB of a specialized are used to write queries of the following type: WHERE col1 = :param1 OR :param1 IS NULL After processing, at the API level, the query will look like this: WHERE col1 = ? OR ? IS NULL This is a case

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5. Batch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.2. Differences Between Batch And Interactive Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.3. Batch Mode Exit Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.4. Errors In Batch Mode Swap To Interactive Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

writes off (or disabled). It is sometimes resorted to in order to improve performance during large batch operations. The big warning here is: do not disable forced writes on a Windows server. It has been operation with forced writes disabled temporarily. Still, do not leave it disabled once your large batch task is completed, unless you have a very robust fall-back power system. 3. Restoring a backup to

off (or disabled). It is sometimes resorted to in an attempt to improve performance during large batch operations. Chapter 7. Protecting your data 40 Disabling forced writes on Windows The big warning operation with forced writes disabled temporarily. Still, do not leave it disabled once your large batch task is completed, unless you have a very robust fall- back power system. 7.2.2. Restoring a backup

writes off (or disabled). It is sometimes resorted to in order to improve performance during large batch operations. Disabling forced writes on Windows The big warning here is: do not disable forced writes operation with forced writes disabled temporarily. Still, do not leave it disabled once your large batch task is completed, unless you have a very robust fall-back power system. Warning It was recently

Forced Writes Off (= deaktiviert). Auf diese Konfiguration wird manchmal zurückgegriffen, um große Batch-Operationen zu beschleunigen. Die große Warnung ist nun: Deaktivieren Sie Forced Writes auf einem Wri- tes ausgeführt werden soll. Trotzdem, lassen Sie Forced Writes nicht deaktiviert, nachdem die Batch-Operatio- nen beendet wurde, solange Sie nicht über ein robustes Notstromsystem verfügen. Wiederherstellen