Easy tips

How do you describe a table structure in DB2?

How do you describe a table structure in DB2?

In DB2, enter on db2 command prompt. Also the following command works: describe SELECT * FROM table_name; Where the select statement can be replaced with any other select statement, which is quite useful for complex inserts with select for example.

How do you find the structure of a table?

Here is an incomplete list:

  1. sqlite3: . schema table_name.
  2. Postgres (psql): \d table_name.
  3. SQL Server: sp_help table_name (or sp_columns table_name for only columns)
  4. Oracle DB2: desc table_name or describe table_name.
  5. MySQL: describe table_name (or show columns from table_name for only columns)

How do I find the schema name for a table in DB2?

select * from sysibm. systables where owner = ‘SCHEMA’ and name like ‘%CUR%’ and type = ‘T’; This will give you all the tables with CUR in them in the SCHEMA schema.

How do you create a table structure?

SQL CREATE TABLE Statement

  1. CREATE TABLE table_name ( column1 datatype, column2 datatype, column3 datatype,
  2. Example. CREATE TABLE Persons ( PersonID int,
  3. CREATE TABLE new_table_name AS. SELECT column1, column2,… FROM existing_table_name.
  4. Example. CREATE TABLE TestTable AS. SELECT customername, contactname.

What is the shortcut key to get table structure in SQL Server?

1 Answer. If you select a table name in the query window of Sql Server Management Studio and press ALT + F1 it will display the details of that table.

What is schema in DB2 table?

DB2 Schema is a collection of named objects classify logically in the database. In a database, it is not possible to create multiple database objects with same name. To do so schema provides a group environment. A schema can contain tables, functions, indices, tablespaces, procedures, triggers etc.

How can I see all database schemas?

Retrieve all schema and their owners in a database

  1. SELECT s. name AS schema_name,
  2. s. schema_id,
  3. u. name AS schema_owner.
  4. FROM sys. schemas s.
  5. INNER JOIN sys. sysusers u ON u. uid = s. principal_id.
  6. ORDER BY s. name;

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Ruth Doyle