Groovy Sql to fetch all columns
-
29-10-2019 - |
문제
I am using Groovy Sql to fetch results. This is the output from my Linux box.
%isql -U abc -P abc -S support
1> sp_configure 'number of open partitions'
2> go
Parameter Name Default Memory Used Config Value Run Value Unit Type
------------------------------ ----------- ----------- ------------ ------------ -------------------- ----------
number of open partitions 500 5201 5000 5000 number dynamic
(1 row affected)
(return status = 0)
1>
I am using groovy code
def sql = Sql.newInstance("jdbc:abc:sybase://harley:6011;DatabaseName=support;",dbuname,dbpassword,Driver)
sql.eachRow("sp_configure 'number of open partitions'"){ row ->
println row.run_value
}
but it gives me
Exception in thread "main" java.sql.SQLSyntaxErrorException: [abc][Sybase JDBC Driver]Invalid column name: run_value
So it says it cannot get the speciied columns, is there a way it can fetch the result and display?
Update
I used the below code
sql.eachRow("sp_configure 'number of open partitions'"){ row ->
println row
}
and it gives me
[Parameter Name:number of open partitions , Default: 500, Memory Used: 5201, Config Value: 5000, Run Value: 5000, Unit:number , Type:dynamic ]
How can I get Run Value
? (since it has a space in it)
row.Run Value
will not work for sure
해결책
Does this work? Querying the meta-data for the column name and getting the value by index:
sql.eachRow("sp_configure 'number of open partitions'"){ row ->
(1..row.getMetaData().columnCount).each {
println "${row.metaData().getColumnName( it )} = ${row[ it ]}"
}
}
Or, to get the column directly
row.'Run Value'
다른 팁
Another alternative is getAt(int). In your case, this will return the 'Run Value':
row.getAt(-3)
Additioannly to @tim_yates's answer I'd like to note that row
has toRowResult()
method. It allows to get a row simply as a Map. No need to call getMetadata()
if we need only column names or table width.
sql.eachRow("sp_configure 'number of open partitions'"){ row ->
row.toRowResult().each(){ colName, value ->
println "${colName} = ${value}"
}
}
This code doing absolutely the same but looks much more clear