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Can I do something like below with CASE in SQL Server
(Case When location = 'Columbia' Then (direction = 942) Else direction End) as newdirection
Originally Columbia's direction is 941.
You don't need the assignment expression, just return the 942. You also don't need the parentheses:
Case When location = 'Columbia' Then 942 Else direction End as newdirection
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As far I as my experience tells me, boolean variables usually named in format - is/has+noun/adj/verb, e.g isValid, isButton, hasClickedLink
But say there is the case where we have some flag which straightly tells whether to do something, like for example, clean to indicate that cleanup function should be automatically called in the end.
How to name such a booleans? Same clean - is ambiguous, looks like a method name more, but naming it toClean is, I don't know, too weird. Or should I name it like callCleanup?
Thanks in advance!
In this case i usually append the word wanted, which makes cleanWanted. In general, for boolean variables I also prefer to always let the last word be an adjective. This makes it very clear that it represents a truth value. The is/has prefix is often superfluous, as in hasClickedLink which is more concisely communicated with linkClicked.
methods are usually one word adjectives with a capitol at the start
maybe create a method that sets the flag
for example
void Clean(){
clean = True;
}
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I am trying to understand why I am getting an error in tf.get_session_tensor.
Below is my code:
https://github.com/subhobrata/Deep-Learning/blob/master/Untitled1.ipynb
Please help me with this error.
You declared type float32 in :
p, a = tf.get_session_tensor(h.handle, tf.float32)
however c is of type int, so you should declare it as such
p, a = tf.get_session_tensor(h.handle, tf.int32)
or change its type to float
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I have table like this:
TABLE:
LOAD * INLINE [
SERVER
'SERVERNAME1'
'SERVERNAME2'
...
];
and loop:
FOR i = 1 to NoOfRows('TABLE')
LET v_TABLE = Peek('SERVER', $(i), 'TABLE');
LET v_SPECIFICATION = FieldName(1, $(v_TABLE));
trace $(v_TABLE);
...
STATEMENTS
...
NEXT
If I reload it, nothing happen, although for cycle runs thousand times, because the result of Peek() funcion is always NULL, not the value from table. Is the syntax incorrect, or is there some other mistake?
Sorry, my question was wrong. In Peek() function the third parameter wasn't string, but a variable (I didnt know that this will be mistake) and after many tries, I found out two things:
in my QV version 11.20 I have to call functions with variable parameter e.g. v_SPECIFICATION, not $(v_SPECIFICATION) (but not variable $(i), why???)
and rows in tables are numbered from zero (sometimes, as well), so this works for me:
LET v_TABLE = Peek('SERVER', $(i) - 1, v_SPECIFICATION);
Its really strange for me, but learning by doing...
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I need to convert a SQL connection string into a String.Format line
The line that I need to convert is this:
WHERE full_name = #FullGraveNumber AND cemetery_id = #CemeteryID
Both thefull_name and cemetery_id are variables, but I have not idea how to construct the
String.Format line.
Seems you are looking for
Dim selectCommand = "SELECT * FROM mytable WHERE full_name = #FullGraveNumber AND cemetery_id = #CemeteryID"
Dim cmd = New SqlCommand(selectCommand, yourconnetion)
cmd.Parameters("#FullGraveNumber").Value = value1
cmd.Parameters("#CemeteryID").Value = value2
or
cmd.Parameters.AddWithValue("#FullGraveNumber", value)
First of all, ConnectionString is already a String with no parameters, it does not need to converted using String.Format. Usually stored in app.config, you feed it directly into SqlConnection object upon creation.
Part of the query that you have is also a String, but this time it may be substituted with parameters. However, please don't do so and use SQL parameters instead (see #huMpty's answer).
full_name and cemetery_id are SQL parameters, variables is something else.
My suggestion it to learn the terminology first, before you do any coding. No offense, it would benefit you a lot, because you would be able to ask a proper question. Proper question means a fast and qualified answer. Improper questions are usually closed. These are the rules of StackOverflow.
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Assuming sngX = 67521.345, What will be displayed when the line of code:
Label1.Text = FormatCurrency(sngX)
is executed.
Assuming that your system regional settings currency sign is $, leading digits is false, and digit grouping is false, then FormatCurrency(67521.345) = $67,521.35
Since you haven't specified your regional settings, and haven't said that you want to use specific values for the other FormatCurrency parameters, your results may vary.