Rather slow, but working method to include any of words: SELECT * FROM mytable WHERE column1 LIKE ‘%word1%’ OR column1 LIKE ‘%word2%’ OR column1 LIKE ‘%word3%’ If you need all words to be present, use this: SELECT * FROM mytable WHERE column1 LIKE ‘%word1%’ AND column1 LIKE ‘%word2%’ AND column1 LIKE ‘%word3%’ If you want … Read more
You are so close! All you need to do is select BOTH the home and its max date time, then join back to the topten table on BOTH fields: SELECT tt.* FROM topten tt INNER JOIN (SELECT home, MAX(datetime) AS MaxDateTime FROM topten GROUP BY home) groupedtt ON tt.home = groupedtt.home AND tt.datetime = groupedtt.MaxDateTime
The DBCC CHECKIDENT management command is used to reset identity counter. The command syntax is: DBCC CHECKIDENT (table_name [, { NORESEED | { RESEED [, new_reseed_value ]}}]) [ WITH NO_INFOMSGS ] Example: DBCC CHECKIDENT (‘[TestTable]’, RESEED, 0); GO It was not supported in previous versions of the Azure SQL Database but is supported now. Thanks … Read more
SELECT Orders.OrderNumber, LineItems.Quantity, LineItems.Description FROM Orders JOIN LineItems ON LineItems.LineItemGUID = ( SELECT TOP 1 LineItemGUID FROM LineItems WHERE OrderID = Orders.OrderID ) In SQL Server 2005 and above, you could just replace INNER JOIN with CROSS APPLY: SELECT Orders.OrderNumber, LineItems2.Quantity, LineItems2.Description FROM Orders CROSS APPLY ( SELECT TOP 1 LineItems.Quantity, LineItems.Description FROM LineItems WHERE … Read more
Not sure why no one suggested but I use sp_fkeys to query foreign keys for a given table: EXEC sp_fkeys ‘TableName’ You can also specify the schema: EXEC sp_fkeys @pktable_name=”TableName”, @pktable_owner=”dbo” Without specifying the schema, the docs state the following: If pktable_owner is not specified, the default table visibility rules of the underlying DBMS apply. … Read more
You can obtain this information and much, much more by querying the Information Schema views. This sample query: SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = N’Customers’ Can be made over all these DB objects: CHECK_CONSTRAINTS COLUMN_DOMAIN_USAGE COLUMN_PRIVILEGES COLUMNS CONSTRAINT_COLUMN_USAGE CONSTRAINT_TABLE_USAGE DOMAIN_CONSTRAINTS DOMAINS KEY_COLUMN_USAGE PARAMETERS REFERENTIAL_CONSTRAINTS ROUTINES ROUTINE_COLUMNS SCHEMATA TABLE_CONSTRAINTS TABLE_PRIVILEGES TABLES VIEW_COLUMN_USAGE VIEW_TABLE_USAGE VIEWS
Functions are computed values and cannot perform permanent environmental changes to SQL Server (i.e., no INSERT or UPDATE statements allowed). A function can be used inline in SQL statements if it returns a scalar value or can be joined upon if it returns a result set. A point worth noting from comments, which summarize the … Read more
You can try it this way: /* Get the data into a temp table */ SELECT * INTO #TempTable FROM YourTable /* Drop the columns that are not needed */ ALTER TABLE #TempTable DROP COLUMN ColumnToDrop /* Get results and drop temp table */ SELECT * FROM #TempTable DROP TABLE #TempTable
Escape the square brackets: … WHERE m.definition Like ‘%\[ABD\]%’ ESCAPE ‘\’ Then the square brackets will be treated as a string literals not as wild cards.
Use INSERT IGNORE INTO table. There’s also INSERT … ON DUPLICATE KEY UPDATE syntax, and you can find explanations in 13.2.6.2 INSERT … ON DUPLICATE KEY UPDATE Statement. Post from bogdan.org.ua according to Google’s webcache: 18th October 2007 To start: as of the latest MySQL, syntax presented in the title is not possible. But there … Read more