how can i select all columns except one in sql server query How can i select the step count of a recursive CTE ? How can i set value of @variable inside with cte ? How can I treat ZERO and NULL the same in a WHERE clause? How can I use the function 'CTE' with multiple b...
Usually, we use * to select all the columns but if we have to select all the columns except one column, then we have to write all the required columns one by one. Here I am going to show how we can achieve it without writing all the columns one by one.
The SELECT statement retrieves rows from the database and enables the selection of rows or columns from tables in the SQL Server Database Engine.
The following example shows three code examples. This first code example returns all rows (no WHERE clause is specified) and all columns (using the*) from theProducttable in theAdventureWorks2022database. SQL USEAdventureWorks2022; GOSELECT*FROMProduction.ProductORDERBYNameASC;-- Alternate way.USE...
tbl_name.*can be used as a qualified shorthand to select all columns from the named table: SELECTt1.*,t2.*FROMt1INNERJOINt2... Use of an unqualified*with other items in the select list may produce a parse error. For example:
In all other cases, a result column is an unnamed column. Names of result columns, SQL variables, and global variables are placed into the SQL descriptor area (SQLDA) when the DESCRIBE statement is executed. This allows an interactive SQL processor such as SPUFI, theDb2 command line processor...
The following example creates a round-robin distributed table namedmyTable (c, ln). The new table only has two columns. It uses the column aliases in the SELECT statement for the names of the columns. SQL CREATETABLEmyTableWITH( CLUSTERED COLUMNSTOREINDEX, DISTRIBUTION = ROUND_ROBIN )ASSELECT...
For small columns the difference might be marginal. But using that way on ABAP side offers the databse the best opportunity to optimize. raghug Active Contributor 2016 Jun 14 2:59 PM 1 Kudo Hi Horst, Like Rakshith, I too remember a recent discussion about the same "SELECT SINGLE ...
1.What is the purpose of using DISTINCT on multiple columns in SQL? DISTINCT on multiple columns eliminates rows where all selected fields are identical, ensuring unique combinations of the specified columns in the result set. 2.How does DISTINCT work with multiple columns?
The following example shows how to insert rows into a table that has columns that automatically generate a value or have a default value. The INSERT statements insert rows that contain values for some of the columns but not all. In the last INSERT statement, no columns are specified and onl...