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206 lines (192 loc) · 6.37 KB
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1. Display all the Supplier names with the initial letter capital.
SELECT CONCAT(UPPER(SUBSTR(SNAME,1,1)), LOWER(SUBSTR(SNAME,2))) AS "INITCAP" FROM S;
----->
+---------+
| INITCAP |
+---------+
| Sup 1 |
| Sup 2 |
| Sup 3 |
| Sup 4 |
| Sup 1 |
| Sup 3 |
| Sup 2 |
| Sup 1 |
| Sup 4 |
| Sup 3 |
+---------+
10 rows in set (0.00 sec)
=================================================================================================================
2. Display all the Supplier names in upper case.
SELECT UPPER(SNAME) FROM S;
----->
+--------------+
| UPPER(SNAME) |
+--------------+
| SUP 1 |
| SUP 2 |
| SUP 3 |
| SUP 4 |
| SUP 1 |
| SUP 3 |
| SUP 2 |
| SUP 1 |
| SUP 4 |
| SUP 3 |
+--------------+
10 rows in set (0.00 sec)
=================================================================================================================
3. Display all the Supplier names in lower case.
SELECT LOWER(SNAME) FROM S;
----->
+--------------+
| LOWER(SNAME) |
+--------------+
| sup 1 |
| sup 2 |
| sup 3 |
| sup 4 |
| sup 1 |
| sup 3 |
| sup 2 |
| sup 1 |
| sup 4 |
| sup 3 |
+--------------+
10 rows in set (0.00 sec)
================================================================================================================
4. Display all the Supplier names padded to 25 characters, with spaces on the left.
SELECT LPAD(SNAME, 25,' ')AS "RIGHT JUSTIFIED" FROM S;
----->
+---------------------------+
| RIGHT JUSTIFIED |
+---------------------------+
| SUP 1 |
| SUP 2 |
| SUP 3 |
| SUP 4 |
| SUP 1 |
| SUP 3 |
| SUP 2 |
| SUP 1 |
| SUP 4 |
| SUP 3 |
+---------------------------+
10 rows in set (0.00 sec)
=============================================================================================================
5. Display all the Supplier names (with ‘3’ replaced by ‘30’). HINT: REPLACE.
SELECT REPLACE(SNAME,'3','30') AS "NEW SNAME" FROM S;
----->
+-----------+
| NEW SNAME |
+-----------+
| SUP 1 |
| SUP 2 |
| SUP 30 |
| SUP 4 |
| SUP 1 |
| SUP 30 |
| SUP 2 |
| SUP 1 |
| SUP 4 |
| SUP 30 |
+-----------+
10 rows in set (0.00 sec)
===============================================================================================================
6. Implement the above command such that ‘U’ is replaced with ‘A’ and ‘3’ is replaced with ‘0’.
SELECT REPLACE(REPLACE(SNAME,'3','0'), 'U','A') AS "NEW SNAME" FROM S;
----->
+-----------+
| NEW SNAME |
+-----------+
| SAP 1 |
| SAP 2 |
| SAP 0 |
| SAP 4 |
| SAP 1 |
| SAP 0 |
| SAP 2 |
| SAP 1 |
| SAP 4 |
| SAP 0 |
+-----------+
10 rows in set (0.00 sec)
================================================================================================================
7. Display the Supplier names and the lengths of the names.
SELECT SNAME AS "SUPPLIER NAME", LENGTH(SNAME) AS "LENGTH" FROM S;
----->
+---------------+--------+
| SUPPLIER NAME | LENGTH |
+---------------+--------+
| SUP 1 | 5 |
| SUP 2 | 5 |
| SUP 3 | 5 |
| SUP 4 | 5 |
| SUP 1 | 5 |
| SUP 3 | 5 |
| SUP 2 | 5 |
| SUP 1 | 5 |
| SUP 4 | 5 |
| SUP 3 | 5 |
+---------------+--------+
10 rows in set (0.00 sec)
==================================================================================================================
8. Use the soundex function to search for a supplier by the name of ‘BLOKE’.
SELECT * FROM S
-> WHERE SOUNDEX(SNAME)=SOUNDEX('SPP');
----->
+------+-------+--------+--------+
| S# | SNAME | STATUS | CITY |
+------+-------+--------+--------+
| S1 | SUP 1 | 10 | LONDON |
| S2 | SUP 2 | 10 | PARIS |
| S3 | SUP 3 | 40 | ATHENS |
| S4 | SUP 4 | 10 | BERLIN |
| S5 | SUP 1 | 20 | LONDON |
| S6 | SUP 3 | 50 | ATHENS |
| S7 | SUP 2 | 30 | PARIS |
| S8 | SUP 1 | 10 | LONDON |
| S9 | SUP 4 | 30 | BERLIN |
| S10 | SUP 3 | 10 | ATHENS |
+------+-------+--------+--------+
10 rows in set (0.00 sec)
SELECT * FROM S
-> WHERE SOUNDEX(CITY)=SOUNDEX('LANDAN');
----->
+------+-------+--------+--------+
| S# | SNAME | STATUS | CITY |
+------+-------+--------+--------+
| S1 | SUP 1 | 10 | LONDON |
| S5 | SUP 1 | 20 | LONDON |
| S8 | SUP 1 | 10 | LONDON |
+------+-------+--------+--------+
3 rows in set (0.00 sec)
======================================================================================================================
9. Display the Supplier name and the status (as Ten, Twenty, Thirty, etc.).
SELECT SNAME, REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(`STATUS`, 50,'FIFTY'),40,'FOURTY'),30,'THIRTY'),20,'TWENTY'), 10,'TEN') AS "STATUS IN WORDS" FROM S;
----->
+-------+-----------------+
| SNAME | STATUS IN WORDS |
+-------+-----------------+
| SUP 1 | TEN |
| SUP 2 | TEN |
| SUP 3 | FOURTY |
| SUP 4 | TEN |
| SUP 1 | TWENTY |
| SUP 3 | FIFTY |
| SUP 2 | THIRTY |
| SUP 1 | TEN |
| SUP 4 | THIRTY |
| SUP 3 | TEN |
+-------+-----------------+
10 rows in set (0.00 sec)
========================================================================================================================
10. Display the current day (e.g. Thursday).
SELECT DAYNAME(SYSDATE()) FROM DUAL;
+--------------------+
| DAYNAME(SYSDATE()) |
+--------------------+
| Wednesday |
+--------------------+
1 row in set (0.00 sec)
=========================================================================================================================