How do I describe a table in PostgreSQL?

How do I describe a table in PostgreSQL?

PostgreSQL describe table is defined as check the structure of table, we can describe the structure of table by using \d and table name command in PostgreSQL. In PostgreSQL describe table statement is not present like MySQL instead of describe we have using \d table name and \d+ table name.

How do you view the definition of a table in IBM DB2?

3 Neat SQL Queries to View Table Structure in DB2

  1. 3 Top SQL Queries to See Table Structure. Use DESCRIBE. Use SYSIBM.SYSCOLUMNS.
  2. With DESCRIBE. Describe schema .table_name. DESCRIBE TSY.MY_FIRST_TABLE.
  3. SYSIBM. SYSCOLUMS. SELECT * FROM SYSIBM.
  4. Using DB2LOOK. db2look -d dbname -e -t my_first_table.

How do I view the contents of a table in PostgreSQL?

Summary

  1. Use the \dt or \dt+ command in psql to show tables in a specific database.
  2. Use the SELECT statement to query table information from the pg_catalog. pg_tables catalog.

How do you describe a table in IBM data Studio?

The DESCRIBE TABLE command lists the following information about each column: Column name. Type schema. Type name….If SHOW DETAIL is specified, the following information for an index over XML data is also listed:

  1. Index ID.
  2. Data type.
  3. Hashed.
  4. Max Varchar length.
  5. XML Pattern.
  6. Column names.

How do you describe a table command?

So desc or describe command shows the structure of table which include name of the column, data-type of column and the nullability which means, that column can contain null values or not. All of these features of table are described at the time of Creation of table.

How do you get DDL of a table in DB2?

Right-click the selected tables, and click Generate DDL in the pop-up menu. To open the Generate DDL notebook from a selected schema, from the Control Center, expand the object tree until you find the Schema folder of the database with which you are working. Click the Schema folder.