this presentation tell about some of the simple queries for android database SQLite

1. SIMPLE SQLITE
QUERIES
Arjun S B

2. Content
■ Simple Query
■ Sorting Rows
■ Filtering Data
■ Joining Tables
■ Grouping Data
■ Sub Queries

3. Simple Query (create database)
■ Download URL: https://www.sqlite.org/download.html

4. Simple Query (create database)
■ Download URL: https://www.sqlite.org/download.html

5. Simple Query (create database)
■ Command for see the list of databases
■ .databases
■ .quit

6. Simple Query (create database)
■ Command for create database
■ sqlite3 databasename.db

7. Sorting Rows
■ Syntax:
SELECT
column_list
FROM
table
ORDER BY
column_1 ASC,
column_2 DESC;

8. Sorting Rows
■ Consider table : tracks

9. Sorting Rows
■ Consider
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SELECT
name,
milliseconds,
albumid
FROM
tracks
ORDER BY
albumid ASC;

10. Sorting Rows
■ Consider
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SELECT
name,
milliseconds,
albumid
FROM
tracks
ORDER BY
albumid ASC,
milliseconds DESC;

11. Filtering Data
■ Syntax
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SELECT
column_list
FROM
table
WHERE
search_condition;

12. Filtering Data
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SELECT
name,
milliseconds,
bytes,
albumid
FROM
tracks
WHERE
albumid = 1;

13. Filtering Data
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SELECT
name,
milliseconds,
bytes,
albumid
FROM
tracks
WHERE
albumid = 1
AND milliseconds > 250000;

14. Joining Tables
■ Concept

15. Joining Tables
■ Syntax
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SELECT a1, a2, b1, b2
FROM A
INNER JOIN B on B.f = A.f;

16. Joining Tables
■ Query for join two tables

17. Grouping Data
■ Syntax
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SELECT
column_1,
aggregate_function(column_2)
FROM
table
GROUP BY
column_1,
column_2;

18. Grouping Data
■ Consider table : COMPANY

19. Grouping Data
■ query for group data
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SELECT
NAME
SUM(SALARY)
FROM
COMPANY
GROUP BY
NAME
ORDER BY NAME;

20. Sub Queries
■ It is a SELECT statement nested into the another statement.
■ Syntax:
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SELECT
column_1
FROM
table_1
WHERE
column_1 = (SELECT column_1 FROM table_2);

21. Sub Queries
■ query for sub queries
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SELECT
*
FROM
COMPANY
WHERE
ID IN (SELECT ID FROM COMPANY WHERE SALARY
> 45000);

22. Reference
■ http://www.sqlitetutorial.net/
■ https://www.tutorialspoint.com/