Basic select statement syntax
SELECT Column_List
FROM Table_Name
If you want to select all the columns, you can also use *. For better performance use the column list, instead of using *.
SELECT *
FROM Table_Name
To Select distinct rows use DISTINCT keyword
SELECT DISTINCT Column_List
FROM Table_Name
Example: Select distinct city from tblPerson
Filtering rows with WHERE clause
SELECT Column_List
FROM Table_Name
WHERE Filter_Condition
Example: Select Name, Email from tblPerson where City = 'London'
Note: Text values, should be present in single quotes, but not required for numeric values.
Different operators that can be used in a where clause
SELECT Column_List
FROM Table_Name
If you want to select all the columns, you can also use *. For better performance use the column list, instead of using *.
SELECT *
FROM Table_Name
To Select distinct rows use DISTINCT keyword
SELECT DISTINCT Column_List
FROM Table_Name
Example: Select distinct city from tblPerson
Filtering rows with WHERE clause
SELECT Column_List
FROM Table_Name
WHERE Filter_Condition
Example: Select Name, Email from tblPerson where City = 'London'
Note: Text values, should be present in single quotes, but not required for numeric values.
Different operators that can be used in a where clause
0 comments:
Post a Comment
Note: only a member of this blog may post a comment.