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How to delete all records from table in sqlite with Android?
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You missed a space: db.execSQL("delete * from " + TABLE_NAME);
Also there is no need to even include *, the correct query is:
db.execSQL("delete from "+ TABLE_NAME);
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ASP.NET MVC 5 vs. AngularJS / ASP.NET WebAPI [closed]
...fer pure HTML views, an entirely angular front end along with a Web API/EF/SQL Server back end, basically no Razor. Razor is an abstraction to help programmers render HTML, these days everyone's coming to the conclusion that removing these abstractions is a better idea, hence the evolution of ASP.NE...
How are people unit testing with Entity Framework 6, should you bother?
...be able to mock your DAL so your BLL can be tested independently of EF and SQL. These are your unit tests. Next you need to design your Integration Tests to prove your DAL, in my opinion these are every bit as important.
There are a couple of things to consider:
Your database needs to be in a kno...
How do I URl encode something in Node.js?
...nts;--")
//>> "Robert')%3B%20DROP%20TABLE%20Students%3B--"
Passing SQL around in a query string might not be a good plan though,
see this one
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HTML+CSS: How to force div contents to stay in one line?
...what you do, and depending on the system (Oracle Designer: Oracle 11g - PL/SQL), divs will always go to the next line, in which case you should use the span tag instead.
This worked wonders for me.
<span float: left; white-space: nowrap; overflow: hidden; onmouseover="rollOverImageSectionFiveTh...
Where are the PostgreSQL logs on macOS?
I would like to take a look at the PostgreSQL log files to see what my app writes to them but I can't find them.
8 Answers
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CodeIgniter activerecord, retrieve last insert id?
...->insert_id()
// it can be return insert id it is
// similar to the mysql_insert_id in core PHP
You can refer this link you can find some more stuff.
Information from executing a query
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Permission denied for relation
I tried to run simple sql command:
10 Answers
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MySQL - Using COUNT(*) in the WHERE clause
I am trying to accomplish the following in MySQL (see pseudo code)
9 Answers
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Best explanation for languages without null
...y "mathematicians" call NaN "nullity" and say it compares equal to itself. SQL treats nulls as not equal to anything (so they behave like NaNs). One wonders what happens when you try to store ±∞, ±0, and NaNs into the same database column (there are 253 NaNs, half of which are "negative").
To m...