Summary
Text Summary
Understanding Methods of Creating Tables
You can use the CREATE
TABLE statement to create a table in three different ways:
-
create a table with no rows (an empty table) by defining columns
-
create an empty table that is like another table
-
create a table that contains rows, based on a query result.
Creating an Empty Table By Defining Columns
You can create a table
with no rows by using a CREATE TABLE statement that contains column
specifications. A column specification includes the following elements:
column name (required), data type (required), column width (optional),
one or more column modifiers (optional), and a column constraint (optional).
Displaying the Structure of a Table
To display, in the ...
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