Answers for "mysql count rows"

SQL
3

mysql get count of rows

SELECT COUNT(*) FROM my_table;
SELECT COUNT(*) FROM my_table WHERE my_column IS NULL;
SELECT COUNT(*) FROM my_table WHERE my_column = 'my_value';
SELECT COUNT(DISTINCT tel) gender_count,
       COUNT(DISTINCT CASE WHEN gender = 'male'   THEN tel END) male_count,
       COUNT(DISTINCT CASE WHEN gender = 'female' THEN tel END) female_count
FROM people;
Posted by: Guest on April-20-2021
1

mysql count words

SELECT description, LENGTH(TRIM(description)) - LENGTH(REPLACE(TRIM(description), ' ', '')) + 1 FROM test.city
Posted by: Guest on January-16-2020
3

select count from table mysql

SELECT COUNT(*) FROM count_demos;
Posted by: Guest on November-24-2020
2

mysql num rows

//number of rows retrieved from a query
<?php

$link = mysql_connect("localhost", "mysql_user", "mysql_password");
mysql_select_db("database", $link);

$result = mysql_query("SELECT * FROM table1", $link);
$num_rows = mysql_num_rows($result);

echo "$num_rows Rows\n";

?>
Posted by: Guest on November-11-2020
0

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;
Posted by: Guest on October-23-2020
0

mysql count rows returned

select count(*) from (select * from foo) as x;
Posted by: Guest on August-26-2021

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