You’ve found your duplicated records but you’re interested in getting all the information attached to them. You need to join your duplicates to your main table to get that information. select * from my_table a join ( select firstname, lastname from my_table group by firstname, lastname having count(*) > 1 ) b on a.firstname = … Read more
Prior to MySQL 5.0.3, a VARCHAR could only store up to 255 characters. To store up to 65535 (64KB) characters, use a TEXT column. To store up to 16777216 (16MB ) characters, use a MEDIUMTEXT column. To store up to 4294967296 (4GB) characters, use a LONGTEXT column. See the storage requirements section of the manual … Read more
You can’t have the % in the NamedQuery, but you can have it in the value you assign the parameter. As in: String city = “needle”; query.setParamter(“city”, “%” + city + “%”);
The reason you aren’t finding easy examples for how to do this in T-SQL is that it is generally considered bad practice to implement formatting logic in SQL code. RDBMS’s simply are not designed for presentation. While it is possible to do some limited formatting, it is almost always better to let the application or … Read more
Select * from table where columnname like’%David%’ and columnname like ‘%Moses%’ and columnname like’%Robi%’
1st option – You can nest REPLACE() functions up to 32 levels deep. It runs fast. REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (@str, ‘0’, ”), ‘1’, ”), ‘2’, ”), ‘3’, ”), ‘4’, ”), ‘5’, ”), ‘6’, ”), ‘7’, ”), ‘8’, ”), ‘9’, ”) 2nd option — do the reverse of – … Read more
I’ll explain by an example: ——————————————————————- | Course | Field | Instructor | Instructor Phone | ——————————————————————- | English | Languages | John Doe | 0123456789 | | French | Languages | John Doe | 0123456789 | | Drawing | Art | Alan Smith | 9856321158 | | PHP | Programming | Camella Ford | … Read more
SELECT Country, COUNT(*) AS Total, COUNT(CASE WHEN Reconnect = true THEN 1 END) AS With_Reconnect FROM PlayerSession S LEFT JOIN Player P ON P.id = S.player_id GROUP BY country
Hive supports bigint literal since 0.8 version. So, additional “L” is enough: COALESCE(column, 0L)
In MySql Workbench version 8.0 you can just follow the next steps Go to Server tab Go to Database Export This opens up something like this Select the schema to export in the Tables to export Click on Export to Self-Contained file Check if Advanced Options… are exactly as you want the export Click the … Read more