Oracle is a widely used relational database management system that provides a powerful query language for retrieving data. In some cases, retrieving the names of columns in a specific table may be useful. This article will show you how to fetch column names in an Oracle database using SQL. SQL SELECT statement is used to fetch data from a database table. The syntax for fetching the column names from a table is as follows:
SELECT column_name
FROM user_tab_columns
WHERE table_name = 'table_name';
FROM user_tab_columns
WHERE table_name = 'table_name';
Replace table_name with the name of the table from which you want to retrieve the column names. The query above will return the names of all columns in the specified table. Alternatively, you can use the following query to retrieve the column names, data types, and sizes of columns in a table:
SELECT column_name, data_type, data_length
FROM user_tab_columns
WHERE table_name = 'table_name';
The user_tab_columns is a system table in the Oracle database that stores information about all columns in all user-defined tables. In conclusion, the SQL SELECT statement can be used to fetch column names in an Oracle database. By using the user_tab_columns system table, you can easily retrieve the names, data types, and sizes of columns in a specific table.
0 Komentar