Reads in options from a configuration file. See @data dbeng12/dbsrv12 server option.

Use this option to read in options from the specified environment variable or configuration file. If both exist with the same name, the environment variable is used. See Using configuration files.

If you want to protect passwords or other information in the configuration file, you can use the File Hiding utility to obfuscate the contents of the configuration file. See File Hiding utility (dbfhide).

Connects to the database specified in the connection string to do the reload.

You can combine the operation of unloading a database and reloading the results into an existing database using this option.

For example, the following command (entered all on one line) loads a copy of the data for the field_user subscriber into an existing database file named c:\field.db:

dbxtract -c "UID=DBA;PWD=sql;DBF=c:\cons.db" 
-ac "UID=DBA;PWD=sql;DBF=c:\field.db" field_user

If you use this option, no copy of the data is created on disk, so you do not specify an unload directory in the command. This provides greater security for your data, but at some cost for performance.

Creates a database file with the same settings as the database being extracted and automatically reload it.

You can combine the operations of unloading a database, creating a new database, and loading the data using this option.

For example, the following command (entered all on one line) creates a new database file named c:\field.db and copies the schema and data for the field_user subscriber of c:\cons.db into it:

dbxtract -c "UID=DBA;PWD=sql;DBF=c:\cons.db" 
-an c:\field.db field_user

If you use this option, no copy of the data is created on disk, so you do not specify an unload directory in the command. This provides greater security for your data, but at some cost for performance.

Specifies database connection parameters, in a string:

The user ID should have DBA authority to ensure that the user has permissions on all the tables in the database.

For example, the following statement (entered all on one line) extracts a database for remote user ID joe_remote from the sample database running on the sample_server database server, connecting as user ID DBA with password sql. The data is unloaded into the c:\extract directory.

dbxtract -c "Server=sample_server;DBN=demo;
UID=DBA;PWD=sql" c:\extract joe_remote

If connection parameters are not specified, connection parameters from the SQLCONNECT environment variable are used, if set.

Specifies the encryption algorithm for the new database. This option allows you to choose a strong encryption algorithm to encrypt your new database. You can choose either AES (the default) or AES_FIPS for the FIPS-approved algorithm. AES_FIPS uses a separate library and is not compatible with AES.

For greater security, specify AES or AES256 for 128-bit or 256-bit strong encryption, respectively. Specify AES_FIPS or AES256_FIPS for 128-bit or 256-bit FIPS-approved encryption, respectively. For strong encryption, you must also specify the -ek or -ep option. For more information about strong encryption, see Strong encryption.

To create a database that is not encrypted, specify -ea none, or do not include the -ea option (and do not specify -e, -et, -ep, or -et).

If you do not specify the -ea option, the default behavior is as follows:

• -ea none, if -ek, -ep, or -et is not specified
• -ea AES, if -ek or -ep is specified (with or without -et)
• -ea simple, if -et is used without -ek or -ep

Algorithm names are case insensitive.

Specifies the encryption key for the new database. This option allows you to create a strongly encrypted database by specifying an encryption key directly in the command. The algorithm used to encrypt the database is AES or AES_FIPS as specified by the -ea option. If you specify the -ek option without specifying -ea, the AES algorithm is used.

Prompts for the encryption key for the new database. This option specifies that you want to create a strongly encrypted database by typing the encryption key in a window. This provides an extra measure of security by never allowing the encryption key to be seen in clear text.

You must input the encryption key twice to confirm that it was entered correctly. If the keys don't match, the initialization fails. See Strong encryption.

Removes encryption from encrypted tables during an unload procedure.

When extracting from a database that has table encryption enabled, you must specify either -er or -et to indicate whether the new database has table encryption enabled, otherwise you get an error when attempting to load the data into the new database.

The following command extracts a database (cons.db) that has encrypted tables, into a new database (field.db) that does not have table encryption enabled, removing encryption from any encrypted tables:

dbxtract -an c:\field.db -er -c "UID=DBA;PWD=sql;DBF=c:\cons.db;DBKEY=29bN8cj1z field_user"

Enables database table encryption in the new database (-an or -ar must also be specified). If you specify the -et option without the -ea option, the AES algorithm is used. If you specify the -et option, you must also specify -ep or -ek. You can change the table encryption settings for the new database to be different from those of the database you are unloading.

When rebuilding a database that has table encryption enabled, you must specify either -er or -et to indicate whether the new database has table encryption enabled, otherwise you get an error when attempting to load the data into the new database.

The following example unloads a database (cons.db) that has tables encrypted with the simple encryption algorithm, into a new database (field.db) that has table encryption enabled, and uses AES_FIPS encryption with the key 34jh:

dbxtract -an c:\field.db -et -ea AES_FIPS -ek 34jh -c "UID=DBA;PWD=sql;DBF=c:\cons.db field_user"

Extracts fully qualified publications. Usually you do not need to extract fully qualified publication definitions for the remote database, since it typically replicates all rows back to the consolidated database.

However, you may want fully qualified publications for multi-tier setups or for setups where the remote database has rows that are not in the consolidated database.

Performs an internal unload and internal reload. Using this option forces the reload script to use the internal UNLOAD and LOAD TABLE statements rather than the Interactive SQL OUTPUT and INPUT statements to unload and load data, respectively. This combination of operations is the default behavior.

External operations take the path of the data files relative to the current working directory of dbxtract, while internal statements take the path relative to the database server.

Performs an internal unload and external reload. Using this option forces the reload script to use the internal UNLOAD statement to unload data, and the Interactive SQL INPUT statement to load the data into the new database.

External operations take the path of the data files relative to the current working directory of dbxtract, while internal statements take the path relative to the database server.

Extracts the schema definition only. With this definition, none of the data is unloaded. The reload file contains SQL statements to build the database schema only. You can use the SYNCHRONIZE SUBSCRIPTION statement to load the data over the messaging system. Publications, subscriptions, PUBLISH, and SUBSCRIBE permissions are part of the schema.

dbxtract -c "UID=DBA;PWD=sql;DBF=c:\remote\cons\cons.db" -n "c:\remote\reload.sql" UserName

Extracts the structure (the same behavior as the -n option), but the resulting reload.sql file also includes LOAD TABLE or INPUT statements for each table. No user data is extracted when this option is used. When you specify -nl, you must also include a data directory so that the LOAD/INPUT statements can be generated, even though no files are written to the directory. This option allows you to generate a reload script without unloading data. You can extract the data by specifying -d. If a database contains a table whose data should not be unloaded, you can avoid unloading the data for that table by using dbxtract -d -e table-name.

Operates quietly: does not display messages or show windows. When this option is specified, -y must also be specified or the operation fails.

This option is available only for the command line utility.

Specifies the name of the generated reload Interactive SQL command file.

The default name for the reload command file is reload.sql in the current directory. You can specify a different file name with this option.

Performs an external unload and internal reload. The default behavior for unloading the database is to use the UNLOAD statement, which is executed by the database server. If you choose an external unload, dbxtract uses the OUTPUT statement instead. The OUTPUT statement is executed on the client.

External operations take the path of the data files relative to the current working directory of dbxtract, while internal statements take the path relative to the database server.

Performs an external unload and an external load. Use the OUTPUT statement to unload the data, and the INPUT statement to load the data into the new database.

The default unload behavior is to use the UNLOAD statement, and the default loading behavior is to use the LOAD TABLE statement. The internal UNLOAD and LOAD TABLE statements are faster than OUTPUT and INPUT.

External operations take the path of the data files relative to the current working directory of dbxtract, while internal statements take the path relative to the database server.