Drop table in Sql

Move a table to other schema in Postgres

ALTER TABLE table_name SET SCHEMA new_sc

sql postgresql

kishore_kumar

how to print star using sql

DECLARE @var int               
SELECT @var = 5 
WHILE @var >0

sql printing pattern my sql

sonia shaik

decode (oracle) equivale in postgres

Simple Case:
case search-expression
    WHEN expression [, expression [ ... 

sql postgres oracle

sonia shaik

nvl (oracle) equivalent in postgres

COALESCE(value [, ...])
The COALESCE function accepts an unlimit
It returns the first argument that is no

sql postgres oracle

sonia shaik

PostgreSQL CONCAT_WS function

SELECT
   concat_ws (column1,column2) AS new_co
FROM

sql concat_ws

Reshma

Adding a new auto increment column to a table

-- New versions of postgres
-- adding as primary key

sql postgres postgresql

kishore_kumar

How to dump a database in postgresql

sudo -i -u postgres

psql

dump postgresql sql

Reshma

Create a user table in MySQL database and ins

CREATE TABLE `user` (
    `username` VARCHAR(25) NOT NULL,
    `email` VARCHAR(150) NOT NULL,

mysql

kishore_kumar

Connect to MySQL database with python mysql c

# pip install mysql-connector

from mysql import connector

python mysql mysql-connector

kishore_kumar

Creating table using MySQLi Object-oriented P

<?php
$servername = "localhost";
$username = "username";

mysqli table creation mysql

Reshma

Creating table using MySQLi Procedural proced

<?php
$servername = "localhost";
$username = "username";

mysqli table creation mysql

Reshma

IFNULL in MySQL

SELECT 
IFNULL(
  (SELECT NAME 

if null mysql

Reshma

MySQL | BIN() Function

SELECT BIN(5);

SELECT BIN(12);

mysql bin()

Reshma

MySQL | RENAME USER

RENAME USER 'RAJ' @ 'localhost' TO 'AMIT

RENAME USER 'PRIYA' @ 'localhost' TO 'DI

rename mysql

Reshma

SQL | ALTER to change the name of the table

ALTER TABLE TABLE_NAME RENAME TO NEW_TAB

alter table mysql

Reshma

SQL | ALTER to change the name of the column

ALTER TABLE TABLE_NAME RENAME COLUMN TO 

alter column mysql

Reshma

MySQL | DEFAULT() Function

SELECT DEFAULT (COLUMN_NAME) FROM TABLE_

default() mysql

Reshma

MySQL | DROP USER

DROP USER 'user' @ 'host';

mysql drop

Reshma

Changing MySQL User Password Using The SET PA

SET PASSWORD FOR 'user' @ 'localhost' = 

mysql set password

Reshma

Changing MySQL User Password Using The ALTER

ALTER USER user@localhost IDENTIFIED BY 

alter password mysql

Reshma