使用Oracle求和得到0的方法（oraclesum0）
Summing To Zero Using Oracle
Oracle is a powerful database management system capable of performing sophisticated tasks. One of the most common tasks is performing a summation. Summation is a process of computing the sum of a set of numbers by adding them together. Summation is also used to help calculate averages, calculate the total of any given list, or generate values for equations.
The Oracle database supports several different ways of doing summations. A very common method is the “sum” function. With this function, you can quickly perform a summation using an Oracle query. For example, the following query will add together all the records in the “table” table:
SELECT SUM(record)
FROM table;
This query will return the sum of all the record values in the “table” table. However, it’s possible to use the same query to find out if the sum of all the record values is equal to zero. To do this, you can use the following query:
SELECT SUM(CASE
WHEN record = 0 THEN 1
ELSE 0 END)
FROM table;
This query will look at all the records in the “table” table and count how many of them are equal to zero. If the result is zero, then the sum of the records in the “table” table is equal to zero.
Another way to perform a summation to zero is to use the “sum” function with a “where” clause. The “where” clause is used to filter the records so that only those records that meet the criteria are included in the summation. For example, if you want to sum all the records from the “table” table that have a value of zero, you can use the following query:
SELECT SUM(record)
FROM table
WHERE record = 0;
This query will return the sum of all the “record” values that are equal to zero. This is an effective way to sum all the records with a value of zero.
Performing a summation to zero using Oracle is a simple process. In addition to using the “sum” function, you can also use the “where” clause to filter the records so that only those records that meet the criteria are included in the summation. By using these methods, you can quickly and easily calculate the sum of a list of values, or find out if the sum of a list of values is equal to zero.
