SQL-144 (#249)

* SQL-144

* Update sql-queries-6/remove-first-N-char-column/copy-column.sql

Co-authored-by: Liam Williams <[email protected]>

* Update sql-queries-6/remove-first-N-char-column/right_queries.sql

Co-authored-by: Liam Williams <[email protected]>

* Update and rename right_queries.sql to right-queries.sql

* Update copy-column.sql

* Update substring_queries.sql

* Rename substring_queries.sql to substring-queries.sql

---------

Co-authored-by: DHONDGE Hrishikesh <[email protected]>
Co-authored-by: Liam Williams <[email protected]>

Author: 3 people

sql-queries-6/remove-first-N-char-column/copy-column.sql

@@ -0,0 +1,3 @@
+ALTER TABLE Course ADD id_copy VARCHAR(10);
+UPDATE Course SET id_copy = id;
+SELECT id, id_copy, name FROM Course LIMIT 4;

sql-queries-6/remove-first-N-char-column/right-queries.sql

@@ -0,0 +1,4 @@
+SELECT RIGHT('websitebaeldung', 8);
+SELECT RIGHT(id_copy, LENGTH(id_copy) - 3) FROM Course;
+UPDATE Course SET id_copy = RIGHT(id_copy, LENGTH(id_copy) - 3);
+SELECT id, id_copy, name FROM Course;

sql-queries-6/remove-first-N-char-column/substring-queries.sql

@@ -0,0 +1,3 @@
+SELECT SUBSTRING(id_copy, 3, 3) from Course;
+UPDATE Course SET id_copy = SUBSTRING(id_copy, 3, 3);
+SELECT id, id_copy, name FROM Course;