大约有 43,300 项符合查询结果(耗时:0.0478秒) [XML]
Save Screen (program) output to a file
...
11 Answers
11
Active
...
Number of rows affected by an UPDATE in PL/SQL
I have a PL/SQL function (running on Oracle 10g) in which I update some rows. Is there a way to find out how many rows were affected by the UPDATE? When executing the query manually it tells me how many rows were affected, I want to get that number in PL/SQL.
...
MySQL: @variable vs. variable. What's the difference?
...nitialize this variable with a SET statement or inside a query:
SET @var = 1
SELECT @var2 := 2
When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables:
DELIMITER //
CREATE PROCEDURE prc_test (var INT)
BEGIN
DECLARE var2 INT;
SET var...
How do you know when to use fold-left and when to use fold-right?
...
105
You can transfer a fold into an infix operator notation (writing in between):
This example fo...
Reduce left and right margins in matplotlib plot
...
11 Answers
11
Active
...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...compiler will return 0, and when compiled with a C++ compiler, will return 1 (the trivial sulution with
#ifdef __cplusplus is not interesting).
...
How can I convert byte size into a human-readable format in Java?
...
1327
Fun fact: The original snippet posted here was the most copied Java snippet of all time on S...
What is a method that can be used to increment letters?
...
14 Answers
14
Active
...
What is the significance of 1/1/1753 in SQL Server?
Why 1753? What do they have against 1752? My great great great great great great great grandfather would be very offended.
...
