In some cases, updating multiple columns in SQL requires more advanced techniques, especially when handling null values, conditional logic, or updating based on data from other tables. When the value of a column depends on another column We may want to update a column based on another column...
It’s sometimes difficult to know which SQL syntax to use when combining data that spans multiple tables. SQL provides several different statements for performing this type of task; knowing which to apply will yield efficient and correct results. In this article, I’ll discuss some of the more...
When required to update multiple columns in multiple rows, we prefer using theCASEstatement because it is easier to understand and manage than the nestedIF()functions. UseINSERT ... ON DUPLICATE KEY UPDATE Example Code: INSERTINTOstudents(ID,JavaScore,PythonScore)VALUES(1,77,72),(2,82,87),...
The SQL INSERT INTO statement is a command used to insert new records into a database table. It’s one of the most frequently used SQL commands, and for a good reason. It allows you to specify the table and columns where the new data will be added, followed by the VALUES keyword and...
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Dhakshina25, and how do you prefered to get it solve? One way is to replace the comma with an other character, like the semicolon: Set@product=substring((Selectdistinct','+REPLACE(product,',',';')frommain_table)T1Orderby1Forxml path('')),2,2000);...
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When the distinct keyword was removed, all values got displayed., which gives us a clear picture of the Select Distinct statement; it gets only the values which are different. This bring us to the end of this Select Query in SQL. Here, we learned to use Select Command in SQL and Select...
Finally, filter the newly createdsnocolumn in the last segment with anotherselectstatement. Set this filter to 1 to obtain unique values in the final output. Learn to Use SQL the Easy Way SQL and its variants have become the talk of the town, with its innate ability to query and use rel...