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  Oracle Tips by Burleson

INSERT

In all the examples in this book, we have been pulling data from the PUBS schema which was loaded using the pubs_db.sql script in the code depot.  This script created all our tables and loaded all the practice data.  To load the data in the tables, it used the INSERT statement.  Below are a few lines from the script loading data into the book_author table.

--*****************************************
-- Insert book_author (25 rows)
--*****************************************
INSERT INTO BOOK_AUTHOR VALUES ('A101', 'B101', .11);
INSERT INTO BOOK_AUTHOR VALUES ('A102', 'B101', .08);
INSERT INTO BOOK_AUTHOR VALUES ('A103', 'B102', .12);
INSERT INTO BOOK_AUTHOR VALUES ('A104', 'B102', .15);
INSERT INTO BOOK_AUTHOR VALUES ('A105', 'B103', .10);
INSERT INTO BOOK_AUTHOR VALUES ('A109', 'B104', .12);
INSERT INTO BOOK_AUTHOR VALUES ('A110', 'B105', .13);
INSERT INTO BOOK_AUTHOR VALUES ('A104', 'B106', .16);
Each statement loads one row of data.  The basic statement is: 
insert into <table name> (col1, col2, col3,…)
                  values (val1, val2, val3,…); 

If the values listed are in the same order as the table columns and there is a value (even if it is NULL) for each column, you can leave out the column list as in the example above.  The easiest way to determine which columns are in the table is to describe the table (SQL> desc author) as we have been doing in our examples.  If you exclude a column from the INSERT, then the column list is mandatory because the database needs to match the values to the columns.  Excluded columns will contain NULL unless the table has a default value defined for that column.  First, let’s insert a new row in the SALES table.

SQL> insert into sales values (
  2     'S124',
  3     'B124',
  4     'O504',
  5      to_date ('01-02-2005 14:30','MM-DD-YYYY HH24:MI'),
  6      100);
1 row created.

This INSERT statement has a value for each column, and they are ordered the same as the table.


The above book excerpt is from:

Easy Oracle SQL

Get Started Fast writing SQL Reports with SQL*Plus

ISBN 0-9727513-7-8

Col. John Garmany 

http://www.rampant-books.com/book_2005_1_easy_sql.htm

  
 

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