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EXISTS(Select null from table) vs IF EXISTS(Select ... ""> "SQL SERVER- IF EXISTS(Select null from table) vs IF EXISTS(Select ... "

"IF EXISTS (Select top (1) * from table) ... IF EXISTS (Select 1 from table) ... IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[tablename]’) AND type in (N’U’)) . DROP TABLE [tablename] ... solution is to create a function that drops the table, and then grant execute priv on the function to the user. ... If exists(select * from table1 group by col1 ) . print ‘hai’ . GO ... If exists(select col1,col ... "

"Use Caution with SQL Server's MERGE Statement"

"Rows affected: ' + RTRIM(@@ROWCOUNT); IF EXISTS (SELECT 1 FROM inserted) AND NOT EXISTS (SELECT 1 FROM deleted) BEGIN PRINT ' I am an insert. ... WHEN EXISTS(SELECT * FROM INSERTED) THEN 'Update' -- Set Action to Updated. ... IF NOT EXISTS(SELECT * FROM INSERTED) RETURN; -- Nothing updated or inserted. ... I always use the schema prefix, even in cases where I know objects are only in the dbo schema, and the only users that will execute the code have dbo as their ... "

"Query, yii\\db\\Query - Yii Framework 2.0 API Documentation"

"query = new Query; // compose the query $query->select('id, name') ->from('user') ->limit(10); // build and execute the query $ ... yii\\db\\Query $from array The table(s) to be selected from. ... yii\\db\\Query create() Creates a new Query object and copies its property values from an existing one. yii\\db\\Query createCommand() Creates a DB command ... The table(s) to be selected from. For example, ['user' ... The new condition and the existing one will be joined using the 'AND' operator."