Popular Posts
javax.net.ssl.SSLHandshakeException: Connection closed by peer in Android 5.0 Lollipop Recently, there is a error occurs when access website via ssl connection like below although it worked fine several days ago. // Enable SSL... Hierarchical Query Start with connect by prior 階層式查詢用法 SELECT s.role_id, s.role_name, s.role_base_on, b.role_name role_base_on_name FROM m_usr_role s... Tired of Hibernate? Try JDBI in your code JDBI Quick sample ICategoryDAO.java : create a data access interface (implement is not required) package com.prhythm.erotic.task.data....
Blog Archive
Stats
Join related table and count rows or sum
sql server 2005
count rows:
SELECT * FROM Table1
LEFT JOIN
    (SELECT Level1ID, COUNT(Level2ID) AS Total FROM Table2 GROUP BY Level1ID) AS RelatedTable
ON
    Table1.Level1ID = RelatedTable.Level1ID
WHERE
    SomeColumn = Something
count sum:
SELECT * FROM Table1
LEFT JOIN
    (SELECT Level1ID, SUM(Bonus) AS TotalBonus FROM Table2 GROUP BY Level1ID) AS RelatedTable
ON
    Table1.Level1ID = RelatedTable.Level1ID
WHERE
    SomeColumn = Something