. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8. Changing The Database Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 14. Database Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . gstat: linux> gstat -header my_employee | grep -i shadow Shadow count 2 Attributes active shadow, multi-user maintenance  The DBA can set up the database to automatically create a new shadow file in the

mechanism to Chapter 4. Using generators to create unique row IDs 12 make this work safely in multi-user/multi-transaction environments, JUST DON’T DO IT! 4.4. Generators for IDs or auto-increment fields just inserted. You could grab the generator value from the client side after the Insert, but in multi-user environments you cannot be really sure that what you get is your own row’s ID (because of the time from the “outside”. Although this can be very handy, it has a strong limitation: it’s not multi-user safe. If the SP would run simultaneously in two transactions, they would mess up the progress

This file is an active shadow file. hdr_force_write 0x02 (bit 1) The database is in forced writes mode. Unused 0x04 (bit 2) Was previously for short term journaling, no longer used. Unused 0x08 (bit indicate the database shutdown mode. hdr_sql_dialect_3 0x100 (bit 8) If set, the database is using SQL dialect 3. hdr_read_only 0x200 (bit 9) Database is in read only mode. hdr_backup_mask 0xC00 (bits 11) Indicates the current backup mode. hdr_shutdown_mask (bit two of two) 0x1080 (bits 7 and 12) Used with bit 7 (see above) to indicate the database shutdown mode. The final two database flags use

Описание и перевод сообщения. (ожидается @1, встретилась @2). -171 335544618 return_mode_err Return mode by value not allowed for this data type. Режим возврата по значению для допускается для этого Обнаружена неизвестная опция командной строки. -901 336986113 fbsvcmgr_bad_am Wrong value for access mode. Неверное значение для режима доступа. -901 335740930 gfix_invalid_sw Invalid switch @1. Неверный Invalid database key. Неверный ключ базы данных. -901 336986114 fbsvcmgr_bad_wm Wrong value for write mode. Обработка ошибок, коды и сообщения 602 SQLCODE GDSCODE SYMBOL TEXT Описание и перевод сообщения

back up a database in two quite different ways and how to switch the database to the “copy-safe” mode for performing an external backup safely. 5.1.1. CREATE DATABASE Used for Creating a new database delta that stores any mutations to the database file after it has been switched to the “copy-safe” mode by the ALTER DATABASE BEGIN BACKUP statement. For the detailed description of this clause, see ALTER Data Definition (DDL) Statements 84 • switch a single-file database into and out of the “copy-safe” mode (DSQL only) • set or unset the path and name of the delta file for physical backups (DSQL only)

as 1.0E1024. Literals with more than 34 significant digits are rounded using the DECFLOAT rounding mode of the session. Chapter 3. Data Types and Subtypes 33 DECFLOAT and Functions Use with Standard back up a database in two quite different ways and how to switch the database to the “copy-safe” mode for performing an external backup safely. 5.1.1. CREATE DATABASE Used for Creating a new database secondary database file diff_file File path and name for DIFFERENCE files (.delta files) for backup mode The CREATE DATABASE statement creates a new database. You can use CREATE DATABASE or CREATE SCHEMA

wechselt zu dieser. Der Schatten ist dann unverfügbar. Was als nächstes passiert, hängt von der Option MODE ab. AUTO | MANUAL-Modus Wenn ein Schatten in eine Datenbank konvertiert wird, ist er nicht verfügbar Sperrenauflösung kann je nach Transaktionsisolationsstufe geringfügig variieren. NO WAIT Mode In the NO WAIT mode, a transaction will immediately throw a database exception if a conflict occurs. Chapter column not array or invalid dimensions (expected @1, encountered @2) -171 335544618 return_mode_err Return mode by value not allowed for this data type -171 335544873 array_max_dimensions Array data type

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Interactive Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5. Batch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.2. Differences Between Batch And Interactive Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.3. Batch Mode Exit Codes . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3. Backup Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4. Restore Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.1. Gbak Default Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

fbk  You can only perform a local (embedded or XNET) backup of the security database; embedded mode requires filesystem access rights to the database file; XNET (Windows only) requires username and Some installers ask you to choose between Classic, SuperClassic and SuperServer mode. What are they? • Classic mode (aka MultiProcess) involves a single listening process that spawns off an additional The server requires exclusive access to each database file it opens (hence the Dedicated). Each mode is fully stable and there is no reason to categorically prefer one to the other. Of course, you may