All exact numeric types always produce the same result, regardless of which kind of processor architecture is being usedor the magnitude of the numbers The parameter supplied to the float data type defines the
Learn about the key differences between CHAR and NCHAR data types in MySQL, including storage requirements and usage scenarios.
In this query, SQL groups the records of theStudenttable by the year specified in theenrollment_datecolumn. Then, for each group (that is, each enrollment year), it counts the number ofidvalues, which correspond to individual students. The result is a list of enrollment years, each associat...
In this article, I am going to explain the difference between Inner join and full join with examples. This is one of the very common SQL server interview questions. Here we will be using SQL Server 2017 or you can use SQL Server 2008 or above. Read my previous Joins in SQL Server 2017...
In this article we will learn about some SQL functions Row_Number() , Rank(), and Dense_Rank() and the difference between them.
[ODBC Driver Manager] Data source name not found and no default driver specified [ODBC SQL Server Driver] Invalid Parameter Number/ Invalid Description or Index [Sql server 2012] Change from vertical to horizontal table as dynamic @@FETCH_STATUS in nested loops @@ServerName returns wrong value ...
int Remarks DIFFERENCEcompares two differentSOUNDEXvalues, and returns an integer value. This value measures the degree that theSOUNDEXvalues match, on a scale of0to4. A value of0indicates weak or no similarity between theSOUNDEXvalues;4indicates strongly similar, or even identically matching,SOUNDEX...
SQL: difference between inner and outer join Assuming you're joining on columns with no duplicates, which is by far the most common case: An inner join of A and B gives the result of A intersect B, i.e. the inner part of a venn diagram intersection....
Learn the key differences between views and materialized views in SQL, including their advantages, disadvantages, and use cases.
2.3. UsingCOUNT(1)in SQL Queries COUNT(1)counts the total number of rows in a table using the literal1instead of*. It yields the same result asCOUNT(*). sql> select COUNT(1) FROM Department; count --- 8 (1 row)Copy Performance...