how to get column names in sql code example

Example 1: get table columns from sql

SELECT *
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE TABLE_NAME = N'Customers' 
-- INFORMATION_SCHEMA is an ANSI-standard (American National Standard Institute) set of read-only views which provide information about all of the tables, views, columns, and procedures in a database
-- "N" defines the subsequent string (the string after the N) as being in unicode

Example 2: get column name sql server

SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = N'Customers'

Example 3: get all columns from table sql

/* To retreive the column names of table using sql */

SELECT COLUMN_NAME.
FROM INFORMATION_SCHEMA. COLUMNS.
WHERE TABLE_NAME = 'Your Table Name'

Example 4: How to View column names of a table in SQL

DESCRIBE Table_Name;

OR 

DESC Table_Name;

Example 5: get column names

public static List getColumnNames(){


        List columnList = new ArrayList<>();
        try {
            ResultSetMetaData rsMetaData = rs.getMetaData();
            for (int colNum = 1; colNum < getColumnCount()  ; colNum++) {
                columnList.add(rsMetaData.getColumnLabel(colNum));
            }
        } catch (SQLException e) {
       System.out.println("ERROR WHILE GETTING COLUMN NAMES "+ e.getMessage());
        }

        return columnList;
    }