The key to using simple CASE statements effectively is understanding how to compare an expression to fixed values.The expression in a simple CASE statement can be a column name, a function, or any valid SQL expression. The values in the WHEN clauses are the fixed values against which we wan...
First you can find the syntax/usage of CASE expression fromExpressions - SAP HANA SQL and System Views Reference - SAP LibraryDon't know what d means in your query, e.g., d.kunnr, d.lifnr and d.parnr, since you have only a and b in your FROM clause. Best regards, Wenjun...
And that is how SQL Case statement is used in an Order by clause: Here’s another example with the SQL Where Case. This might not be a good SQL Where Case statement because the query below does not make any sense, right? 1 2 3 SELECT * FROM Production.Product p WHERE 1 = ...
SQL - The SQL SELECT Statement SQL - Restricting and Sorting Data SQL - Using Single-Row Functions SQL - Conditional Expressions SQL - Using the Group Functions SQL - Get Data from Multiple Tables SQL - Subqueries to Solve Queries SQL - Using the Set Operators SQL - Manipulating Data SQL -...
, IN v_str varchar(30) ) BEGIN CASE n_str WHEN n_str = 'profileStatus' THEN UPDATE tbl_contact SET status = 'A' WHERE id = id; -- The above statement updates the entire table instead of the right row WHEN n_str = 'phoneNumberMobile' THEN ...
SQL Statement #1 SELECT title, price, Budget = CASE price WHEN price > 20.00 THEN 'Expensive' WHEN price BETWEEN 10.00 AND 19.99 THEN 'Moderate' WHEN price < 10.00 THEN 'Inexpensive' ELSE 'Unknown' END, FROM titles This statement would return results similar to these: ...
Example 7.2 Connector/J: Using java.sql.Statement to execute a SELECT query import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; import java.sql.ResultSet; // assume that conn is an already created JDBC connection (see previous ...
Automatically UpperCase ALL MS SQL Server Keywords AutoNumber in T-SQL Select Statement AVG ->Operand data type varchar is invalid for avg operator avoid insertion of duplicate entries in a BULK INSERT statement Bad performance of EXCEPT operator Basic - select with fixed values - invert columns...
Oracle 学习之SQL(一) Retrieving Data Using the SQL SELECT statement,SELECT能干什么?Projection:查询表中指定列。Selection:查询表中指定行。Join:表与表之间做连接,要查看的数据放在多张表中,并且表与表之间的数据有关系。SELECT语句的基本语法:SELECT关键字后
, IN v_str varchar(30) ) BEGIN CASE n_str WHEN n_str = 'profileStatus' THEN UPDATE tbl_contact SET status = 'A' WHERE id = id; -- The above statement updates the entire table instead of the right row WHEN n_str = 'phoneNumberMobile' THEN ...