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

1 vote258 views1 answer
Incompatible sql_mode=only_full_group_by
SQL
0 vote263 views1 answer
How to select a row in sql
SQL
0 vote281 views1 answer
Sql column contains special character
SQL
0 vote260 views1 answer
ORACLE PARSE STRING
SQL
0 vote273 views1 answer
Sql order by except one row
SQL
0 vote261 views2 answers
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'created at' in 'field list' (SQL: insert into `categories` (`category_name`, `user_id`, `created at`) values (sea fish, 1, 2021-09-24 04:17:31))
SQL
14 votes305 views6 answers
Finding duplicate rows mysql
SQL
4 votes253 views4 answers
Date less than in sql
SQL
19 votes290 views5 answers
Display table in sql
SQL
3 votes250 views2 answers
Oracle apex charging debug
SQL