Insert if not exists sql

If not exists insert sql

IF NOT EXISTS (SELECT * FROM EmailsRecebidos 
                   WHERE De = @_DE
                   AND Assunto = @_ASSUNTO
                   AND Data = @_DATA)
   BEGIN
       INSERT INTO EmailsRecebidos (De, Assunto, Data)
       VALUES (@_DE, @_ASSUNTO, @_DATA)
   END

Source: stackoverflow.com

Insert if not exists sql

INSERT INTO #table1 (Id, guidd, TimeAdded, ExtraData)
SELECT Id, guidd, TimeAdded, ExtraData
FROM #table2
WHERE NOT EXISTS (Select Id, guidd From #table1 WHERE #table1.id = #table2.id)
-----------------------------------
MERGE #table1 as [Target]
USING  (select Id, guidd, TimeAdded, ExtraData from #table2) as [Source]
(id, guidd, TimeAdded, ExtraData)
    on [Target].id =[Source].id
WHEN NOT MATCHED THEN
    INSERT (id, guidd, TimeAdded, ExtraData)
    VALUES ([Source].id, [Source].guidd, [Source].TimeAdded, [Source].ExtraData);
------------------------------
INSERT INTO #table1 (id, guidd, TimeAdded, ExtraData)
SELECT id, guidd, TimeAdded, ExtraData from #table2
EXCEPT
SELECT id, guidd, TimeAdded, ExtraData from #table1
------------------------------
INSERT INTO #table1 (id, guidd, TimeAdded, ExtraData)
SELECT #table2.id, #table2.guidd, #table2.TimeAdded, #table2.ExtraData
FROM #table2
LEFT JOIN #table1 on #table1.id = #table2.id
WHERE #table1.id is null

Source: stackoverflow.com

Similar codes

0 vote153 views2 answers
When should you stop testing
TypeScript
0 vote153 views1 answer
Let say your Project Manager tell you that your database requests are consume a lot of memory, you need to do something to improve the performance. How would you do it in hibernate ?
TypeScript
9 votes165 views4 answers
Combine list of lists python
TypeScript
1 vote200 views1 answer
Shortcuts for ajax in vscode
TypeScript
0 vote157 views1 answer
__redux_devtools_extension_compose__ typescript
TypeScript
0 vote171 views1 answer
Angular closest element
TypeScript
0 vote197 views2 answers
Typescript cannot find namespace
TypeScript
0 vote138 views1 answer
Queryselectorall of multiple tags
TypeScript
0 vote161 views1 answer
.htaccess Redirects
TypeScript
2 votes153 views1 answer
Reactive form programmatically set value
TypeScript