#include <stdio.h>
#include <conio.h>
int main(void)
{
char ch;
int i;
printf("Enter a character: ");
ch = getche();
printf("\n");
/* display binary representation */
for(i = 128; i > 0; i = i / 2){
if(i & ch)
printf("1 ");
else
printf("0 ");
}
return 0;
}
#include <stdio.h>
int main(void)
{
printf("\xA0 \xA1 \xA2 \xA3");
return 0;
}
/*
mysql> DROP TABLE Employee;
Query OK, 0 rows affected (0.00 sec)
mysql> CREATE TABLE Employee (
-> Name VARCHAR(50) NOT NULL,
-> Phone VARCHAR(15) NOT NULL
-> );
Query OK, 0 rows affected (0.08 sec)
mysql> Describe Employee;
+——-+————-+——+—–+———+——-+
| Field | Type | Null | Key | Default | Extra |
+——-+————-+——+—–+———+——-+
| Name | varchar(50) | | | | |
| Phone | varchar(15) | | | | |
+——-+————-+——+—–+———+——-+
2 rows in set (0.01 sec)
mysql> INSERT INTO Employee (Name, Phone)
-> VALUES (’Joe Yin’, ’666 2323′);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO Employee (Name) VALUES (’John Doe’);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO Employee (Name, Phone) VALUES (’John Doe’, NULL);
ERROR 1048 (23000): Column ’Phone’ cannot be null
mysql> Select * from Employee;
+———-+———-+
| Name | Phone |
+———-+———-+
| Joe Yin | 666 2323 |
| John Doe | |
+———-+———-+
2 rows in set (0.00 sec)
*/
DROP TABLE Employee;
CREATE TABLE Employee (
Name VARCHAR(50) NOT NULL,
Phone VARCHAR(15) NOT NULL
);
Describe Employee;
INSERT INTO Employee (Name, Phone)
VALUES (‘Joe Yin‘, ’666 2323‘);
INSERT INTO Employee (Name) VALUES (‘John Doe‘);
INSERT INTO Employee (Name, Phone) VALUES (‘John Doe‘, NULL);
Select * from Employee;
SQL>
SQL> set echo on
SQL>
SQL> DECLARE
2 v_MyChar VARCHAR2(20) := ‘test‘;
3 v_NUMBER NUMBER;
4 V_Date DATE := SYSDATE;
5 v_counter INTEGER;
6 BEGIN
7 DBMS_OUTPUT.PUT_LINE(‘This is a Test‘);
8 DBMS_OUTPUT.PUT_LINE(‘Of Syntax Error Debugging‘);
9 For v_COUNTER IN 1..5 LOOP
10 DBMS_OUTPUT.PUT_LINE(‘You are in loop:‘ || v_counter);
11 END LOOP;
12 END;
13 /
This is a Test
Of Syntax Error Debugging
You are in loop:1
You are in loop:2
You are in loop:3
You are in loop:4
You are in loop:5
PL/SQL procedure successfully completed.
SQL>
SQL>
SQL>
SQL> –
/* Displaying String: out quotation marks in a printf */
#include <stdio.h>
void main()
{
printf("\n\"It is a wise father that knows his own child.\" Shakespeare");
}
