About Course
Database management with SQL (Structured Query Language) involves creating, managing, and manipulating relational databases. SQL is a standard programming language used to interact with and manage relational databases. Here are key aspects of database management using SQL:
1. Creating a Database:
- Syntax:
sql
CREATE DATABASE database_name;
2. Creating Tables:
- Syntax:
sql
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
...
);
3. Inserting Data:
- Syntax:
sql
INSERT INTO table_name (column1, column2, ...)
VALUES (value1, value2, ...);
4. Querying Data (SELECT Statement):
- Syntax:
sql
SELECT column1, column2, ...
FROM table_name
WHERE condition;
5. Updating Data:
- Syntax:
sql
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
6. Deleting Data:
- Syntax:
sql
DELETE FROM table_name
WHERE condition;
7. Filtering Data (WHERE Clause):
- Syntax:
sql
SELECT column1, column2, ...
FROM table_name
WHERE condition;
8. Sorting Data (ORDER BY Clause):
- Syntax:
sql
SELECT column1, column2, ...
FROM table_name
ORDER BY column1 [ASC|DESC];
9. Joining Tables:
- Syntax:
sql
SELECT column1, column2, ...
FROM table1
INNER JOIN table2 ON table1.column = table2.column;
10. Grouping Data (GROUP BY Clause):
sql
- **Syntax:**
```sql
SELECT column1, COUNT(column2)
FROM table_name
GROUP BY column1;
```
11. Creating Indexes:
ruby
- **Syntax:**
```sql
CREATE INDEX index_name
ON table_name (column1, column2, ...);
```
12. Transactions (COMMIT and ROLLBACK):
ruby
- **Syntax:**
```sql
COMMIT;
```
```sql
ROLLBACK;
```
13. Views:
sql
- **Syntax:**
```sql
CREATE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;
```
14. Stored Procedures:
ruby
- **Syntax:**
```sql
CREATE PROCEDURE procedure_name
AS
-- SQL statements
```
15. User Management (GRANT and REVOKE):
ruby
- **Syntax:**
```sql
GRANT privilege
ON object
TO user;
```
```sql
REVOKE privilege
ON object
FROM user;
```
16. Backing Up and Restoring Databases:
sql
- **Using Database Management System (DBMS)-specific commands or tools.**Student Ratings & Reviews
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