In PL/SQL (Procedural Language/Structured Query Language), you can execute SQL statements within a PL/SQL block using various constructs and techniques. Here is an in-depth explanation of how you can execute SQL statements within a PL/SQL block:
1. SQL Statements within PL/SQL Block:
You can directly include SQL statements within the body of a PL/SQL block. SQL statements are typically used to interact with the database, retrieve or manipulate data, and perform various database operations. Here's an example of executing a SQL SELECT statement within a PL/SQL block:
```
sql`DECLARE
-- Declare variables to hold result data
emp_name VARCHAR2(100);
emp_salary NUMBER;
BEGIN
-- Execute SQL SELECT statement
SELECT employee_name, salary INTO emp_name, emp_salary
FROM employees
WHERE employee_id = 100;
-- Process the retrieved data
DBMS_OUTPUT.PUT_LINE('Employee Name: ' || emp_name);
DBMS_OUTPUT.PUT_LINE('Employee Salary: ' || emp_salary);
END;
/`
```
2. Implicit Cursor:
PL/SQL provides an implicit cur....
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