HAVING 用于过滤分组后的结果 以下是一个简单的 SQL 查询示例: SELECT customer_name, order_date, product_name, quantity FROM orders JOIN customers ON orders.customer_id = customers.customer_id JOIN products ON orders.product_id = products.product_id WHERE customer_name = 'John Doe' ORDER BY orde...
Documenting changes is also a good thing to do, but some changes are to complex to write your own SQL code for (including juggling data around between tables). The redgate tools create scripts in a matter of seconds and those scripts are almost always correct (some older versions had a ha...
ROW_NUMBER can order the account_id's by the datediff between timestamp and quarter end date. ...
When asking questions like this it's very helpful to provide easily reproducible DDL/DML, something...
216610: "LEFT JOIN" statement in sp procedure presented as "WHERE" statement in ApexSQL Diff "Difference view table" when the "White space" option is enabled 221570: App crashes when parsing dependency 221569: Inconsistency with "Internal difference viewer" between ApexSQL Diff v2021.01 and v2018....
When asking questions like this it's very helpful to provide easily reproducible DDL/DML, something...
Thanks in advance A cast is used when converting between values of the same kind, like converting an int to double. The Convert.ToDouble method does different things depending on the data type of the argument. The Convert.ToDouble(int) just does a cast, while Convert.ToDouble(string) parse...
Packing all my things in the early morning to catch a flight roll call was exhausting. Waiting at the air terminal for hours with all that equipment at various times of the day was exhausting. There was one time I had to relay between bases to get to my destination and wasn't able to...
Time as theser are reserved words in VBA. Consider adding the primary key to the ORDER BY clause as well, so Access can distinguish between 2 records that have exactly the same date and time. If you want the time as a string instead of a number of seconds, see: http://members.rogers...
I have a PDI Transformation that is using the Merge rows (diff) step comparing rows from two Table Input steps (with Sorts in between). (I linked a screenshot of the Transformation at the bottom of the post) The queries in the Table Input require parameters to be passed,...