You can try those conditions :
–简单Case函数 CASE sex WHEN ‘1’ THEN ‘男’ WHEN ‘2’ THEN ‘女’ ELSE ‘其他’ END ...
在SQL语句中使用IF或CASE with multiple条件的作用是根据不同的条件执行不同的操作或返回不同的结果。这些条件可以是基于列的值、函数的结果、逻辑表达式等。 使用IF语句可以根据条件执行不同的操作。IF语句的基本语法如下: 代码语言:txt 复制 IF condition THEN statement1; ELSE statement2; END IF; ...
ADD and SUBTRACT depending on the condition is CASE STATEMENT ADD COLUMN to variable table? Add prefix in data column Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a large (100 million rows) table with default constraint adding a extra column in a pivot table created...
Note that submitting a single SELECT or DML statement to the server is simply a single statement batch, a special case of the first type of the request.In either case, SQL Server iterates over the statements contained in the batch or stored procedure and sequentially executes them. Statements...
DTS_E_EXPREVALSTATIC_CONDITIONALOPINVALIDCONDITIONTYPE DTS_E_EXPREVALSTATIC_CONDITIONALOPSETTYPEFAILED DTS_E_EXPREVALSTATIC_CONDITIONALOPTYPEMISMATCH DTS_E_EXPREVALSTATIC_DATACONVERSIONFAILED DTS_E_EXPREVALSTATIC_DATACONVERSIONNOTSUPPORTED DTS_E_EXPREVALSTATIC_DATACONVERSIONOVERFLOW DTS_...
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In many cases, simpler is better. Focus on the core features and make sure that the most common use cases are easy to accomplish. And above all, don't waste your time or clutter your user interface with edge case features. One company that has embraced this sentiment is 37signals, a co...
In case of generating multiple SQL queries, I would first execute query that filters data (and return only Ids of records matching condition), and then use that resulting enumerable object with record Ids in: .Where(p => ids.Contains(p.Id)). In my scenario, query that filters data is ...
I am certain whosoever uses sql does use in as an alternative of multiple “or” as a shorthand, to avoid the repetitive condition. It's good we have in clause in the sql language, Think how hard it would be if we have to write multiple ‘or’ clause 100 times for the same column...