Informatics Practices
The Doc_name Column of a table Hospital is given below :
| Doc_name |
|---|
| Avinash |
| Hariharan |
| Vinayak |
| Deepak |
| Sanjeev |
Based on the information, find the output of the following queries :
(i) SELECT docname FROM HOSPITAL WHERE Docname like "%v";
(ii) SELECT docname FROM HOSPITAL WHERE docname like "%e%";
SQL Queries
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Answer
(i) SELECT doc_name FROM HOSPITAL WHERE Doc_name like "%v";
+----------+
| doc_name |
+----------+
| Sanjeev |
+----------+
Working
The query SELECT doc_name FROM HOSPITAL WHERE Doc_name like "%v"; selects the doc_name from the HOSPITAL table where the Doc_name column ends with the letter "v" using the LIKE operator with the "%" wildcard. This pattern matches any string where "v" is the last character, and any characters can precede it.
(ii) SELECT doc_name FROM HOSPITAL WHERE doc_name like "%e%";
+----------+
| doc_name |
+----------+
| Deepak |
| Sanjeev |
+----------+
Working
The query SELECT doc_name FROM HOSPITAL WHERE doc_name like "%e%"; selects the doc_name from the HOSPITAL table where the doc_name column contains the letter "e". This is achieved using the LIKE operator with the "%" wildcard before and after the letter "e", which matches any sequence of characters that have "e" in them.
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