I use pymysql to connect to db. Here is the way I call the procedure.
cur.execute("call delete_shop_tables(?,?,?,?,?)", args)
The procedure expects 5 string variables.
args has five string variables in an array (args = ["one","two","three","four", "five"])
I get the following errors when the above line is executed.
TypeError: not all arguments converted during string formatting
What could I be missing?
try call delete_shop_tables(args)
This is the right way to call procedures.
It's a db we recently inherited. Once I collated the columns in WHERE clause to match with the collation what's in the column definition, it all worked.
I believe in pymysql the argument placeholder is %s, not ?. Try this
cur.execute("call delete_shop_tables(%s,%s,%s,%s,%s)", args)
Related
I am making use of MarkLogic's ability to call XQuery functions in the XSL transform.
Let's say I have an XQuery library with a function whose signature looks like the following. This is for illustrative purposes only.
declare function my-func:ex-join($first as xs:string, $last as xs:string) as xs:string
{
fn:concat($first, '-', $last)
}
From XQuery, I can call this function with empty sequence as parameters, with no issues, i.e.
ex-join((), '1244')
The function will just return an empty sequence, but I don't get any errors. If I try to all this function from with in my XSL transform,as in:
<xsl:value-of select="my-func:ex-join(//node/value/text(), 'something')"/>
If the /node/value does not exist, and an empty sequence is passed in, I get the coercion error.
Does anyone have suggestions to work around the coercion problem, outside of checking the values in XSL prior to the select? These are auto-generated XSL templates, which would mean a lot of coded checks.
Thanks,
-tj
Attempts to invoke that function in XQuery would fail too. It is probably due to function mapping that you don't notice this though. Put the following at the top of your XQuery code:
declare option xdmp:mapping "false";
Next to this, you only need to change the signature of your function to accept empty-sequences. Replace as xs:string with as xs:string?:
declare function my-func:ex-join($first as xs:string?, $last as xs:string?) as xs:string
fn:concat will accept empty sequences as arguments, so no further changes required to make it work..
HTH!
In this article it shows how to use the SqlCommandProvider type. The sample code has this:
use cmd = new SqlCommandProvider<"
SELECT TOP(#topN) FirstName, LastName, SalesYTD
FROM Sales.vSalesPerson
WHERE CountryRegionName = #regionName AND SalesYTD > #salesMoreThan
ORDER BY SalesYTD
" , connectionString>(connectionString)
what does the <... ,...> before the type constructor name mean and why the the
first parameter have to be a string literal? It looks like a generic but it's taking variables not types. The constructor seems to be taking in a connection string already in the <> section.
The angle brackets are the configuration for a type.
In your example, you are defining a type and creating an instance at the same type. It's clearer when the steps are separated.
Define a type.
type SalesPersonQuery = SqlCommandProvider<query, connectionString>
But to actually have an instance of the type you have to create it:
let command = new SalesPersonQuery()
Now you can use the command.Execute() rather then SalesPersonQuery.Execute().
The reason there is a constructor is because later on (at run-time) you can change the connection string to a different then the one provided in the definition, so for instance:
let command = new SalesPersonQuery(differentConnectionString)
You can find that in the documentation in configuration section:
Connection string can be overridden at run-time via constructor optional parameter
First parameter can be a path to a SQL script or a SQL query. I suppose that's the reason it's a string: how else would you like to define a SQL query?
Again, from the documentation:
Command text (sql script) can be either literal or path to *.sql file
I am using Jedis. I need a Lua script to scan for a pattern with a specified limit. I don't know how to pass the parameters inside Lua script.
Sample Code:
String script="return {redis.call('SCAN',KEYS[1],'COUNT',KEYS[2],'MATCH',KEYS[3]}";
List<String> response = (List<String>)jedis.eval(script,cursor,COUNT,pattern);
How do I pass these parameters to the script?
Your code has several points to fix.
In scan command, 'match' parameter should be placed prior to 'count'.
You should only use KEYS when it is a place for Redis key. Other things should be represented to ARGV.
You forgot to specify key count while calling Jedis.eval().
So, fixed version of your code is,
String script="return {redis.call('SCAN',ARGV[1],'MATCH',ARGV[2],'COUNT',ARGV[3])}";
List<String> response = (List<String>)jedis.eval(script, 0, cursor, pattern, COUNT);
But I agree Itamar to use Jedis.scan() instead.
Hope this helps.
question from a groovy newbie:
sql is initiated as follows
final Binding binding = new Binding();
binding.setProperty("sql", sql);
final groovy.sql.Sql sql = Sql.newInstance(dbConfig.getUrl(), dbConfig.getUserName(), dbConfig.getPasswd(),"oracle.jdbc.OracleDriver");
I am running a query in groovy like this
def listOfRows = sql.rows (select column1 from table1);
listOfRows when printed shows contents like [[column1_name:value1], [column1_name:value2], [column1_name:value3]]
I want to check if value2 (a String) exists in the returned list of values from the above query.
I have tried doing listOfRows.contains('value2') and listOfRows.find('value2'),
it complains that the method does not exist for lists..
what's the best way of doing this ?
EDITED: I have corrected the list of printed values. What's being returned is List<GroovyResultSet>
and I have also added the definition of sql.
I would suggest you to take a look at groovy documentation, and particularly to collections documentation (both tutorial and JDK/GDK).
in that case, the most specifically adapted solution would be to use Collection#find() ... with something like
listOfRows.find { it.contains(':value2') }
Which can be translated into human-readable
find the first element in this collection which string contains ":value2".
You probably want
listOfRows.column1.contains( 'value2' )
You are probably invoking this method which takes a GString (note that GString != String) as an argument. According to this question, a string in single quotes is a standard java string, and a string in double quotes is a templatable string.
'hello' //java.lang.String
"hello" //groovy.lang.GString
Try this:
listOfRows.contains("value2")
what i ended up doing is following :
iterate the listOfRows, get all the values for column1 from each GroovyResultSet into a listOfValues ,then check for my values in that list.
def listOfValues=[];
listOfRows.collect(listOfValues){it.getAt('column1')};
if(listOfValues.size()==3){
println('success');
}
The only statement in my SQL code is
DEFINE p_starttime DATETIME YEAR TO SECOND;
I get this error from Informix 10.5:
ERROR: A syntax error has occurred.
Error Code: -201
Query =
DEFINE p_starttime DATETIME YEAR TO SECOND
Anybody has a clue why this might be happening? It's such a simple statement.
It's not valid SQL, as simple as that. DEFINE is not a keyword you can use in a query. It is part of the Stored Procedure Language, or SPL syntax, ie:
CREATE FUNCTION foo();
DEFINE p_starttime DATETIME YEAR TO SECOND;
-- do stuff
RETURN p_starttime;
END FUNCTION;