executions within isql. It also accepts DDL, DML and console commands. The isql utility can be used in three modes: as an interactive session; directly from the command line; and as a non-interactive session password. Chapter 5. Starting An Isql Session 10 Chapter 6. Ending an Isql Session There are two ways to exit isql. • If you wish to roll back all uncommitted work and exit isql type this command at variable to preset the required role. It is possible to connect to a database using isql in two ways: locally and remotely. • To connect locally, on Windows, use the CONNECT statement with the full

and developer of administrator tools for the Firebird DBMS. 1.5. Contributing There are several ways you can contribute to the documentation of Firebird, or Firebird in general: • Participate on the database. SQL dialects can be defined at the database level and specified at the connection level. Three dialects are available: • Dialect 1 is intended solely to allow backward comptibility with legacy names that are case-sensitive or that do not meet the requirements for regular identifiers in other ways. ◦ All strings must be delimited with single quotes (apostrophes). ◦ Generator values are stored

is for this predicate is now disallowed since a numeric can be converted to a string in different ways. However, for the reverse case, INTEGER_FIELD = STRING_ARGUMENT, index scanning is allowed because Model Classic, Superserver and Embedded are all the same Firebird engine. The differences are in the ways the server module uses machine and network resources. Briefly: • Classic runs a stub process named the later section entitled Microsoft Runtime Libraries. Installation Choices On Windows, you have three server models to choose from: Superserver, Classic and Embedded Server. This means you have some decisions

concerned, a spare-time one. Then, in 2013-4, two benefactor companies — MICEX amd IBSurgeon — funded three writers to take up this stalled book outline and publish a Firebird 2.5 Language Reference in Russian database. SQL dialects can be defined at the database level and specified at the connection level. Three dialects are available: • Dialect 1 is intended solely to allow backward comptibility with legacy names that are case-sensitive or that do not meet the requirements for regular identifiers in other ways. ◦ All strings must be delimited with single quotes (apostrophes). ◦ Generator values are stored

sufficient rights on the database files. Choose your authentication method(s) Firebird supports three authentication methods when connecting to databases: 1. Srp (Secure Remote Password): The user must Firebird ships with a text-mode client named isql (Interactive SQL utility). You can use it in several ways to connect to a database. One of them, shown below, is to start it in interactive mode. Go to the be created. 6.4. Firebird SQL Every database management system has its own idiosyncrasies in the ways it implements SQL. Firebird adheres to the SQL standard more rigorously than most other RDBMSes.

COMMIT, to remove the remaining shadow file, gstat now shows that the shadow count has gone up to three when it should have gone down to zero! Chapter 4. Shadow Files 9 Chapter 5. Set Database Page Buffers -⁠r[ollback] or -⁠tw[o_phase] options, the output is exactly the same and appears to show that these three are all just synonyms for the -⁠l[ist] -⁠pr[ompt] pair of options. This occurred whether or not specific features of the SQL language that are available when accessing that database. There are three dialects at present (Firebird version 2.0), these are: • Dialect 1 stores date and time information

fb_lock_mgr should be present though as soon as any kind of Classic connection has been established. Other ways to test a Firebird server immediately after installation include connecting to a database, creating option enabled (the installation program doesn't offer this possibility anymore, but there are other ways). As said before, the combination Classic + Guardian currently doesn't work if Firebird runs as an the database files. Choose your authentication model (2.1 only) Firebird 2.1 and higher support three authentication models when connecting to databases or using the tools: 1. Native: The user must identify

all. • Paths and file names are case-sensitive on all platforms except Windows; passwords are al- ways case-sensitive. You should now see the shell prompt for the gsec utility: GSEC> 3. Type this command: at authenticating as SYSDBA using the password masterkey. Using isql There are several different ways to connect to a database using isql. One way is to start isql in its in- teractive shell. Go to the locate the messages. Firebird SQL Every database management system has its own idiosyncrasies in the ways it implements SQL. Fire- bird adheres to the SQL standard more rigorously than any other RDBMS except

compressed. Once the compression of the data in a column has been expanded, the data consists of three parts — a field header, the actual data and, if necessary, some padding bytes. Obviously, when decompressing consecutive characters ‘DD’ did not get compressed. Compression only takes place when there are three or more identical characters. 8.4.2. Uncompressed Data The first record we inserted is 'uncompressed' bye is a control byte (0xfd) and as this is negative (-3), it means that the next byte is repeated three times. Byte 5 (0x0a) is another control byte and indicates that the next 10 bytes are copied unchanged

InterBase and Firebird at will; just take care they don't run at the same time. There are several ways to start and stop the database servers: • Easiest, most powerful and therefore recommended: go to