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Friday 17 September 2021

What are CRUD Operations in sql videos in Telugu 17

 https://youtu.be/y6K-Proi1RA

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Setting environment for using XAMPP for Windows.
Mounika@MOUNIKA-PC c:\xampp
# mysql -h localhost -u root;
ERROR 1045 (28000): Access denied for user 'root;'@'localhost' (using password: NO)

Mounika@MOUNIKA-PC c:\xampp
# USE vlrinst;
'USE' is not recognized as an internal or external command,
operable program or batch file.

Mounika@MOUNIKA-PC c:\xampp
# mysql -h localhost -u root
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 9
Server version: 10.4.18-MariaDB mariadb.org binary distribution

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> USE vlrinst;
Database changed
MariaDB [vlrinst]> show tables;
+-------------------+
| Tables_in_vlrinst |
+-------------------+
| emp               |
+-------------------+
1 row in set (0.098 sec)

MariaDB [vlrinst]> select * from emp;
+----+---------+-----------+------+-------+
| id | name    | loc       | age  | sal   |
+----+---------+-----------+------+-------+
|  1 | venkat  | kphb      |   35 | 30000 |
|  2 | praveen | pune      |   28 | 35000 |
|  3 | mounika | hyderabad |   22 | 39000 |
|  4 | revathi | jntu      |   26 | 20000 |
|  5 | anji    | gutta     |   28 | 20000 |
|  6 | harika  | lb nagar  |   26 | 30100 |
|  7 | praveen | jntu      |   33 |   100 |
|  8 | pandu   | munipeda  |   35 | 30300 |
|  9 | pandu   | pune      |   23 | 39300 |
+----+---------+-----------+------+-------+
9 rows in set (0.154 sec)

MariaDB [vlrinst]> select * from emp;
+----+---------+-----------+------+-------+
| id | name    | loc       | age  | sal   |
+----+---------+-----------+------+-------+
|  1 | venkat  | kphb      |   35 | 30000 |
|  2 | praveen | pune      |   28 | 35000 |
|  3 | mounika | hyderabad |   22 | 39000 |
|  4 | revathi | jntu      |   26 | 20000 |
|  5 | anji    | gutta     |   28 | 20000 |
|  6 | harika  | lb nagar  |   26 | 30100 |
|  7 | praveen | jntu      |   33 |   100 |
|  8 | pandu   | munipeda  |   35 | 30300 |
|  9 | pandu   | pune      |   23 | 39300 |
+----+---------+-----------+------+-------+
9 rows in set (0.002 sec)

MariaDB [vlrinst]> select name,loc from emp;
+---------+-----------+
| name    | loc       |
+---------+-----------+
| venkat  | kphb      |
| praveen | pune      |
| mounika | hyderabad |
| revathi | jntu      |
| anji    | gutta     |
| harika  | lb nagar  |
| praveen | jntu      |
| pandu   | munipeda  |
| pandu   | pune      |
+---------+-----------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select age from emp;
+------+
| age  |
+------+
|   35 |
|   28 |
|   22 |
|   26 |
|   28 |
|   26 |
|   33 |
|   35 |
|   23 |
+------+
9 rows in set (0.000 sec)

MariaDB [vlrinst]> select * from emp;
+----+---------+-----------+------+-------+
| id | name    | loc       | age  | sal   |
+----+---------+-----------+------+-------+
|  1 | venkat  | kphb      |   35 | 30000 |
|  2 | praveen | pune      |   28 | 35000 |
|  3 | mounika | hyderabad |   22 | 39000 |
|  4 | revathi | jntu      |   26 | 20000 |
|  5 | anji    | gutta     |   28 | 20000 |
|  6 | harika  | lb nagar  |   26 | 30100 |
|  7 | praveen | jntu      |   33 |   100 |
|  8 | pandu   | munipeda  |   35 | 30300 |
|  9 | pandu   | pune      |   23 | 39300 |
+----+---------+-----------+------+-------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select id,name,age,sal from emp;
+----+---------+------+-------+
| id | name    | age  | sal   |
+----+---------+------+-------+
|  1 | venkat  |   35 | 30000 |
|  2 | praveen |   28 | 35000 |
|  3 | mounika |   22 | 39000 |
|  4 | revathi |   26 | 20000 |
|  5 | anji    |   28 | 20000 |
|  6 | harika  |   26 | 30100 |
|  7 | praveen |   33 |   100 |
|  8 | pandu   |   35 | 30300 |
|  9 | pandu   |   23 | 39300 |
+----+---------+------+-------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select name,sal,id,name from emp;
+---------+-------+----+---------+
| name    | sal   | id | name    |
+---------+-------+----+---------+
| venkat  | 30000 |  1 | venkat  |
| praveen | 35000 |  2 | praveen |
| mounika | 39000 |  3 | mounika |
| revathi | 20000 |  4 | revathi |
| anji    | 20000 |  5 | anji    |
| harika  | 30100 |  6 | harika  |
| praveen |   100 |  7 | praveen |
| pandu   | 30300 |  8 | pandu   |
| pandu   | 39300 |  9 | pandu   |
+---------+-------+----+---------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select * from emp;
+----+---------+-----------+------+-------+
| id | name    | loc       | age  | sal   |
+----+---------+-----------+------+-------+
|  1 | venkat  | kphb      |   35 | 30000 |
|  2 | praveen | pune      |   28 | 35000 |
|  3 | mounika | hyderabad |   22 | 39000 |
|  4 | revathi | jntu      |   26 | 20000 |
|  5 | anji    | gutta     |   28 | 20000 |
|  6 | harika  | lb nagar  |   26 | 30100 |
|  7 | praveen | jntu      |   33 |   100 |
|  8 | pandu   | munipeda  |   35 | 30300 |
|  9 | pandu   | pune      |   23 | 39300 |
+----+---------+-----------+------+-------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select distinct loc form emp;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'emp' at line 1
MariaDB [vlrinst]> select distinct loc from emp;
+-----------+
| loc       |
+-----------+
| kphb      |
| pune      |
| hyderabad |
| jntu      |
| gutta     |
| lb nagar  |
| munipeda  |
+-----------+
7 rows in set (0.016 sec)

MariaDB [vlrinst]> select distinct loc,name from emp;
+-----------+---------+
| loc       | name    |
+-----------+---------+
| kphb      | venkat  |
| pune      | praveen |
| hyderabad | mounika |
| jntu      | revathi |
| gutta     | anji    |
| lb nagar  | harika  |
| jntu      | praveen |
| munipeda  | pandu   |
| pune      | pandu   |
+-----------+---------+
9 rows in set (0.011 sec)

MariaDB [vlrinst]> INSERT INTO emp(name, loc, age,sal)
    -> VALUES ('venkat', 'kphb', 35,30000),
    ->        ('praveen', 'pune', 28,35000),
    ->        ('mounika', 'hyderabad', 22,39000),
    ->        ('revathi', 'jntu', 26,20000),
    ->        ;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 5
MariaDB [vlrinst]> INSERT INTO emp(name, loc, age,sal)
    -> VALUES ('venkat', 'kphb', 35,30000),
    ->        ('praveen', 'pune', 28,35000),
    ->        ('mounika', 'hyderabad', 22,39000),
    ->        ('revathi', 'jntu', 26,20000),
    -> INSERT INTO emp(name, loc, age,sal)
    -> VALUES ('venkat', 'kphb', 35,30000),
    ->        ('praveen', 'pune', 28,35000),
    ->        ('mounika', 'hyderabad', 22,39000),
    ->        ('revathi', 'jntu', 26,20000)
    ->        ;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO emp(name, loc, age,sa
l)
VALUES ('venkat', 'kphb', 35,30000),
   ...' at line 6
MariaDB [vlrinst]> INSERT INTO emp(name, loc, age,sal)
    -> VALUES ('venkat', 'kphb', 35,30000),
    ->        ('praveen', 'pune', 28,35000),
    ->        ('mounika', 'hyderabad', 22,39000),
    ->        ('revathi', 'jntu', 26,20000)
    ->        ;
Query OK, 4 rows affected (0.105 sec)
Records: 4  Duplicates: 0  Warnings: 0

MariaDB [vlrinst]> select * from emp
    -> ;
+----+---------+-----------+------+-------+
| id | name    | loc       | age  | sal   |
+----+---------+-----------+------+-------+
|  1 | venkat  | kphb      |   35 | 30000 |
|  2 | praveen | pune      |   28 | 35000 |
|  3 | mounika | hyderabad |   22 | 39000 |
|  4 | revathi | jntu      |   26 | 20000 |
|  5 | anji    | gutta     |   28 | 20000 |
|  6 | harika  | lb nagar  |   26 | 30100 |
|  7 | praveen | jntu      |   33 |   100 |
|  8 | pandu   | munipeda  |   35 | 30300 |
|  9 | pandu   | pune      |   23 | 39300 |
| 10 | venkat  | kphb      |   35 | 30000 |
| 11 | praveen | pune      |   28 | 35000 |
| 12 | mounika | hyderabad |   22 | 39000 |
| 13 | revathi | jntu      |   26 | 20000 |
+----+---------+-----------+------+-------+
13 rows in set (0.001 sec)

MariaDB [vlrinst]> select distinct loc,name form emp;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'emp' at line 1
MariaDB [vlrinst]> select distinct loc,name from emp;
+-----------+---------+
| loc       | name    |
+-----------+---------+
| kphb      | venkat  |
| pune      | praveen |
| hyderabad | mounika |
| jntu      | revathi |
| gutta     | anji    |
| lb nagar  | harika  |
| jntu      | praveen |
| munipeda  | pandu   |
| pune      | pandu   |
+-----------+---------+
9 rows in set (0.001 sec)

MariaDB [vlrinst]> select distinct loc,name,id from emp;
+-----------+---------+----+
| loc       | name    | id |
+-----------+---------+----+
| kphb      | venkat  |  1 |
| pune      | praveen |  2 |
| hyderabad | mounika |  3 |
| jntu      | revathi |  4 |
| gutta     | anji    |  5 |
| lb nagar  | harika  |  6 |
| jntu      | praveen |  7 |
| munipeda  | pandu   |  8 |
| pune      | pandu   |  9 |
| kphb      | venkat  | 10 |
| pune      | praveen | 11 |
| hyderabad | mounika | 12 |
| jntu      | revathi | 13 |
+-----------+---------+----+
13 rows in set (0.001 sec)

MariaDB [vlrinst]>

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