Oracle - Understanding SQL DML Statements for Oracle

Understanding SQL DML Statements for Oracle

Q

Where to find answers to frequently asked questions on SQL DML Statements for Oracle. I want insert and delete data in tables.

✍: FYIcenter.com

A

Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on SQL DML Statements for Oracle. Clear answers are provided with tutorial exercises on inserting, updating and deleting rows from database tables.

What Are DML Statements in Oracle

Create a Test Table for DML Testing in Oracle

Set Up SQL*Plus Output Format in Oracle

Insert a New Row into a Table in Oracle

Specify Default Values in INSERT Statements in Oracle

Omit Columns in INSERT Statements in Oracle

Insert Multiple Rows with 1 INSERT Statement in Oracle

Update Values in a Table in Oracle

Update Values on Multiple Rows in Oracle

Use Existing Column Values in SET Clause in Oracle

Use Values from Other Tables in UPDATE in Oracle

Error: Single-Row Subquery Returns More Than One Row in Oracle

Delete an Existing Row from a Table in Oracle

Delete Multiple Rows from a Table in Oracle

in Oracle

Sample scripts used in this FAQ assumes that you are connected to the server with the HR user account on the default database instance XE. See other FAQ collections on how to connect to the server.

Some sample scripts requires database tables created by other samples in the beginning of the collection.

⇒⇒Oracle Database Tutorials

2020-02-07, 739👍, 0💬

What Are DML Statements in Oracle
What Are DML Statements in Oracle? DML (Data Manipulation Language) statements are statements to change data values in database tables. The are 3 primary DML statements: INSERT - Inserting new rows into database tables. UPDATE - Updating existing rows in database tables . DELETE - Deleting existing ... 2020-02-07, 670👍, 0💬

Create a Test Table for DML Testing in Oracle
How To Create a Testing Table in Oracle? If you want to practice DML statements, you should create a testing table as shown in the script below: CREATE TABLE fyi_links (id NUMBER(4) PRIMARY KEY, url VARCHAR2(80) NOT NULL, notes VARCHAR2(1024), counts NUMBER, created DATE DEFAULT (sysdate)); Table cr... 2020-02-07, 637👍, 0💬

Create a New View in Oracle
How To Create a New View in Oracle? You can create a new view based on one or more existing tables by using the CREATE VIEW statement as shown in the following script: CREATE VIEW employee_department AS SELECT e.employee_id, e.first_name, e.last_name, e.email, e.manager_id, d.department_name FROM em... 2020-02-07, 600👍, 0💬

Drop an Existing View in Oracle
How To Drop an Existing View in Oracle? If you have an existing view, and you don't want it anymore, you can delete it by using the DROP VIEW statement as shown in the following script: DROP VIEW employee_department; View dropped. ⇒Understanding SQL DDL Statements for Oracle ⇒⇒Oracle Database Tut... 2020-02-07, 568👍, 0💬

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