The following SQL statement creates two tables (Cars and Colors) and then creates a relationship
between the Cars table and the Colors table on the ColorID field (each car can have only one
CREATE TABLE Cars
PL/SQL Script for the information of the student Chavez from the student table:
SELECT * into student_rec
WHERE id = 23121;
dbms_output.put_line('Student ID: ' | student_rec.id);
The Oracle/PLSQL | operator allows you to concatenate 2 or more strings together.
The syntax for the | operator in Oracle/PLSQL is:
string1 | string2 [ | string_n ]
lvOutPut := 'BLA';
In SQL Server (Transact-SQL), a primary key is a particular field or blend of fields that
exclusively defines a record. None of the fields that are part of the primary key can enclose a null
value. A table can have only one primary key.