To select multiple columns in a table, just separate the column names with commas! For example, this query selects two columns, Name and BirthDate, from the Persons table: SELECT Name, BirthDate FROM Persons Sometimes you may want to select all columns in a table.
How do I select multiple columns?
Selecting Columns You can also select multiple columns by selecting a column header, holding down Shift, and pressing the left or right arrow keys to select additional columns.
How to select multiple columns in SQL?
To retrieve multiple columns from a table, use the same SELECT statement. The only difference is that you must specify multiple column names after the SELECT keyword and separate each column with a comma.
How to select multiple columns as single column in SQL?
select col1 | col 2 as bothcols of tbl… or adding (for example) numeric data: choose col1 + col2 as bothcols of tbl… In both cases you get a single column bothcols containing the combined data.
How to select multiple distinct columns in MySQL?
Select unique in all columns of the first query using . Select with unique for multiple columns and sort by clause. Count() function and use different to select across multiple columns.
How to select multiple columns in a dataframe?
We can use double brackets [[]] to select multiple columns from a dataframe in pandas. In the above example we used a list containing a single variable/column name to select the column. If we want to select multiple columns, we specify the list of column names in any order.
How to select multiple columns in Google Sheets?
To select multiple rows in the data view, click a row, then hold down Ctrl (Windows) or Command (Mac) and select any other rows you want to edit or delete. To select a continuous list, click a row, then hold down Shift and click the last row.
How to select multiple columns in a subquery?
So far you have written single-row subqueries and multi-row subqueries where only one column is compared in the WHERE clause or HAVING clause of the SELECT statement. If you want to compare two or more columns, you need to write a compound WHERE clause with logical operators.
How to select multiple rows in SQL?
SELECT * FROM users WHERE ( id IN (1, 2 ,..,n) ) or, if you want to limit yourself to a list of records between id 20 and id 40, then you can just write: SELECT * FROM users WHERE ( ( ID >= 20 ) AND ( ID = 40 ) )
How do I select multiple rows in a single column?
STUFF function in SQL Server
- Create a database.
- Create 2 tables as below.
- Run this SQL query to get the student course IDs separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT , + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2.
How to select multiple values in a single column?
SELECT * FROM Reports WHERE SomeOtherField IN ( SELECT SomeOtherField FROM Reports WHERE id = 1 or id = 2 Or id IN(1, 2, 3) GROUP BY SomeOtherField HAVING COUNT(DISTINCT id) = 3 )
What is the difference between unique and unique?
Unique and Distinct are two SQL constraints. The key difference between Unique and Distinct in SQL is that Unique helps ensure that all values in a column are different while Distinct helps remove all duplicate records while retrieving records from a table.
How to count different columns in the same table?
SELECT CompanyName, TotalOpenClaims = COUNT (CASE IF StatusID = 1, THEN ClaimID END), TotalClosedClaims = COUNT (CASE IF StatusID = 2, THEN ClaimID END), TotalReOpenedClaims = COUNT (CASE IF StatusID = 3, THEN ClaimID END), TotalPendingClaims = COUNT (CASE IF StatusID = 4 THEN ClaimID END) FROM dbo.