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

5 votes335 views1 answer
Postgres integer to serial
SQL
1 vote328 views1 answer
ALL_TAB_PARTITIONS
SQL
1 vote332 views1 answer
Get the User Name and Domain Name from an Email Address
SQL
0 vote341 views1 answer
Sql check if column exists
SQL
6 votes352 views2 answers
Insert into select mysql
SQL
3 votes330 views1 answer
Pl sql escape &
SQL
3 votes329 views1 answer
Dbms_scheduler drop_job
SQL
13 votes312 views4 answers
Mysql get last row
SQL
1 vote317 views1 answer
Sql select where id not exists in another table
SQL
5 votes367 views4 answers
Mysql update column with value from another table
SQL