How to rearrange column in oracle 12c?

Shanel Feest asked a question: How to rearrange column in oracle 12c?
Asked By: Shanel Feest
Date created: Mon, Apr 12, 2021 11:10 AM


Top best answers to the question «How to rearrange column in oracle 12c»

Reordering Columns

  1. From the View menu, select Reorder Columns.
  2. Reorder the columns using the Reorder Columns dialog.


Those who are looking for an answer to the question «How to rearrange column in oracle 12c?» often ask the following questions:

💻 How do you rename column in oracle?

  • To rename a column in oracle we have to use rename column statement. You have to use rename column statement along with alter table statement. The RENAME COLUMN statement allows us to rename an existing column in an existing table in any schema (except the schema SYS).

💻 How to get column data types in oracle?

  • For a table in oracle, I can query "all_tab_columns" and get table column information, like the data type, precision, whether or not the column is nullable. In SQL Developer or TOAD, you can click on a view in the GUI and it will spit out a list of the columns that the view returns and the same set of data (data type, precision, nullable, etc).

💻 How to set oracle in memory column store?

  • – Set the amount of memory for Oracle In-Memory Column Store (which is a part of SGA): ALTER SYSTEM SET inmemory_size=60000M SCOPE=SPFILE; Note, the required size of the In-Memory pool depends on the raw size of the segments you want to load into In-Memory Store and the actual segment compression rates.

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