Mysql count table rows

Count of tables in database mysql

SELECT count(*) 
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'database_name'

Mysql get all tables row count

# get row count of all tables in all database in this server
select table_name, table_schema,table_rows from information_schema.tables;

# get row count of all tables in testdb database
select table_name, table_schema,table_rows from information_schema.tables where table_schema='testdb';

Mysql count table rows

select table_name, sum(table_rows) as sum 
from information_schema.tables
where table_schema = '[DB NAME]'
group by table_name 
order by sum desc;

Mysql select count if contains

SELECT sum( case when `tags_Column` CONTAINS 'tag2' then 1 else 0 end ) as tag2,
       sum( case when `tags_Column` CONTAINS 'tag3' then 1 else 0 end ) as tag3,
       .....
       sum( case when `tags_Column` CONTAINS 'tag256' then 1 else 0 end ) as tag256,
       sum( case when `tags_Column` CONTAINS `tag2` OR 
                      `tags_Column` CONTAINS 'tag3`
            then 0 else 1 end ) as doesnt_contains_tags_2_3
FROM `TableContainsTags`

-1

Source: stackoverflow.com

Similar codes

0 vote169 views1 answer
Sql counter column
SQL
0 vote165 views1 answer
Char vs varchar2 in sql
SQL
0 vote164 views1 answer
Mysql does collate nopad recognize space
SQL
0 vote181 views1 answer
Extract sql from query object sqlalchemy
SQL
-1 vote204 views1 answer
Create view in mysql workbench
SQL
-1 vote200 views1 answer
Mysql faster insert
SQL
0 vote203 views2 answers
The metadata storage is not up to date, please run the sync-metadata-storage command to fix this issue.
SQL
1 vote180 views1 answer
Sql server update column based on another table
SQL
22 votes173 views3 answers
How to join three tables in sql using joins
SQL
0 vote209 views1 answer
Reindexing all tables sql server
SQL