Author: Dev

In Oracle PL/SQL, the INTERVAL DAY TO SECOND data type is used to represent a period of time in terms of days, hours, minutes, and seconds. This data type is particularly useful when dealing with durations or intervals between two points in time, such as the difference between two dates. Syntax The INTERVAL DAY TO…(Continue Reading)

In Oracle PL/SQL, the TIMESTAMP WITH TIME ZONE data type is used to store date and time information along with the corresponding time zone offset. This data type is especially useful when dealing with applications that span across different time zones, as it allows for accurate representation and manipulation of date and time data with…(Continue Reading)

Oracle PL/SQL includes a set of Data Definition Language (DDL) statements that allow developers and database administrators to define and manage the structure of the database. DDL statements are essential for creating, altering, and deleting database objects like tables, indexes, and views. Here are some key Oracle PL/SQL DDL statements: CREATE TABLE: The CREATE TABLE…(Continue Reading)

In Oracle PL/SQL, you can modify a column’s data type, default value, or name using the ALTER TABLE statement. This statement allows you to make changes to the structure of a table, such as modifying the data type or size of a column. Here’s an example for each operation: 1. Modify Column Data Type: To…(Continue Reading)

In Oracle PL/SQL, the ALTER TABLE statement is used to modify the structure of an existing table, and one of the common modifications is adding a new column to the table. Adding a column allows you to expand the information stored in the table and adapt to changing business requirements. Syntax The syntax for adding…(Continue Reading)