OR operator truth table
2009-08-17 15:46
190 查看
OR Operator Truth Table
Condition X | Condition Y | Result
FALSE | FALSE | FALSE
TRUE | FALSE | TRUE
FALSE | TRUE | TRUE
TRUE | TRUE | TRUE
TRUE | NULL | TRUE
NULL | TRUE | TRUE
FALSE | NULL | NULL
NULL | FALSE | NULL
NULL | NULL | NULL
Condition X | Condition Y | Result
FALSE | FALSE | FALSE
TRUE | FALSE | TRUE
FALSE | TRUE | TRUE
TRUE | TRUE | TRUE
TRUE | NULL | TRUE
NULL | TRUE | TRUE
FALSE | NULL | NULL
NULL | FALSE | NULL
NULL | NULL | NULL
相关文章推荐
- Truth table for the OR operator
- Truth table for AND operator
- AND Operator Truth Table
- ORA-10635: Invalid segment or tablespace type
- msyql同步的时候报错 : 错误代码: 1293 Incorrect table definition;there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause
- C/C++运算符优先级表 - C Operator Precedence Table
- dynamic add rows into table (support firefox or IE5+)
- How do I see all foreign keys to a table or column?
- make: 1254-055 Dependency line needs colon or double colon operator.
- 解决 Class not found和Base table or view not found: 1051 问题
- 20120606:ORA-01747: invalid user.table.column, table.column, or column specification
- Check if a database or table exists using Sql Server 2005
- This TableLayout layout or its LinearLayout parent is possibly useless
- How to Update millions or records in a table", version 8.1.7
- 从一个单独的文件中比如.txt中..加载grid table or tree
- ORA-01797: this operator must be followed by ANY or ALL
- python bitwise and or operator VS logical operator
- What or Why is the dual table in Oracle?
- SQL Server Error Messages - Msg 1776 : There are no primary or candidate keys in the referenced Table
- ActiveRecord OR TableGateway