Duplicate table sql

CREATE TABLE new_table LIKE original_table;

Source: popsql.com

Duplicate in sql

• SELECT first_name, COUNT (first_name) FROM employees
GROUP BY first_name
HAVING (COUNT(first_name) > 1);

Sql how to duplicate a table

CREATE TABLE new_table LIKE original_table;
INSERT INTO new_table SELECT * FROM original_table;

Duplicate records in sql

Multiple field=
SELECT username, email, COUNT(*)
FROM users
GROUP BY username, email
HAVING COUNT(*) > 1

Single field=
SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

Duplicate a column in sql

ALTER TABLE Table1
ADD SubCategory2 {Type of subcategory 1} {NULL|NOT NULL} 
UPDATE Table1 SET SubCategory2 = SubCategory;

Source: stackoverflow.com

Similar codes

0 vote125 views1 answer
Mysql illegal mix of collations for operation 'concat'
SQL
0 vote131 views1 answer
Drop procedure sql
SQL
0 vote152 views2 answers
Clauses in mysql
SQL
34 votes118 views5 answers
Oracle alter table add column
SQL
0 vote146 views1 answer
Stored procedure to change name of column for all dependent tables and views
SQL
10 votes140 views2 answers
Reset mysql root password mac
SQL
0 vote112 views3 answers
Sql count condition
SQL
0 vote114 views1 answer
Sql query to select records entered in last 24 hours
SQL
0 vote119 views1 answer
Get the Domain Name, Page Name and Query Parameter from a URL
SQL
3 votes122 views4 answers
Mysql decimal
SQL