How do you get DDL of a table in DB2?
To open the Generate DDL notebook from a database, from the Control Center, expand the object tree until you find the database that contains the objects for which you want to create DDL. Right-click the database and click Generate DDL in the pop-up menu.
How do you view a view in IBM DB2?
To get a DB2 view definition we can use the SYSIBM. SYSVIEW DB2 system table. The SYSVIEW table stores the details about all the views that exist in DB2.
What is db2look command?
Extracts the Data Definition Language (DDL) statements that are required to reproduce the database objects of a production database on a test database. The db2look command for extracting database privileges does not extract ones with grantor as SYSIBM . …
How do you describe a view in DB2?
To define a view, you use the CREATE VIEW statement and assign a name (up to 128 characters in length) to the view. Specifying the view in other SQL statements is effectively like running an SQL SELECT statement. At any time, the view consists of the rows that would result from the SELECT statement that it contains.
What is DDL in DB2?
Data definition language (DDL) describes the portion of SQL that creates, alters, and deletes database objects. These database objects include schemas, tables, views, sequences, catalogs, indexes, and aliases. Creating a schema.
How do you create a DDL?
To generate a DDL statement:
- On the Workspace home page, click the SQL Workshop.
- Click Utilities.
- Click Generate DDL. The Generate DDL page appears.
- Click Create Script. The Generate DDL Wizard appears.
- Select a database schema and click Next.
- Define the object type:
- Click Generate DDL.
How do I create a view in Db2?
Db2 CREATE VIEW
- First, specify the name of the view which you want to create after the CREATE VIEW keywords. The column names of the view will automatically derive from the select_statement .
- Second, specify a SELECT statement that retrieves data from columns of one or more tables.
What is Db2 trigger?
A trigger is a piece of code that is automatically executed, or fired in response to a data modification event on a table. Db2 stores the triggers in the database catalog, where each trigger is attached to a single table.
How do I run db2top?
To run in replay mode, db2top must be first run in data collector mode, either in batch mode by running db2top from the command line with the -C parameter, or by activating or deactivating data collection from an interactive session by pressing C. This will create a file
What is db2pd command?
The command db2pd -applications -dynamic reports the current and last anchor ID and statement unique ID for dynamic SQL statements. This allows direct mapping from an application to a dynamic SQL statement.
What is describe table?
Describes either the columns in a table or the current values, as well as the default values, for the stage properties for a table. DESCRIBE can be abbreviated to DESC. ALTER TABLE , CREATE TABLE , SHOW TABLES.
What is a DDL in mainframe?
Data Definition Language is used to define (CREATE), alters (ALTER) and deletes (DROP) the database objects. The database objects include schemas, tables, views, sequences, catalogs, indexes, and aliases. The main DDL statements are: CREATE. ALTER.
How does db2look generate DDL statements?
When you invoke the db2look utility, the db2look command generates the DDL statements for any object created using an uncommitted transaction.
How do I use db2look in a test system?
However, using the db2look tool, you can create a test system with access plans that are similar to those that would be used on the production system. You can use this tool to generate the UPDATE statements that are required to replicate the catalog statistics on the objects in a production database on a test database.
Does db2look work with z/OS databases?
If the DBname is a Db2 for z/OS database, the db2look command generates the following statements: These DDL and UPDATE statistics statements are applicable to a Db2 database and not to a Db2 for z/OS database.
Where is the output sent to in db2look?
The output is sent to the db2look.sql file. Generate the DDL statements for objects that were created by all users in the database DEPARTMENT. The files that are required to register any included XML schemas and DTDs are exported to the /home/ofer/ofer/ directory. The output is sent to standard output.