mikeandbee
asked on
hash tables in ASP page
Hi,
Can i use hash tables (lookup) within an asp page?
I have a statis table in my db which has three rows describing a certain event. But it means my sql queries will have to always join this table and make the sql much more arduous. If i can use a lookup table however, I can simply reference the value of the three rows directly in the sql.
ie
select * from stat_table
Dim POS = 1
Dim DISt = 2
Dim TIME = 3
then in subsequent sql queries I can simply say WHERE stat_id = 1...
how do i use it in asp?
Can i use hash tables (lookup) within an asp page?
I have a statis table in my db which has three rows describing a certain event. But it means my sql queries will have to always join this table and make the sql much more arduous. If i can use a lookup table however, I can simply reference the value of the three rows directly in the sql.
ie
select * from stat_table
Dim POS = 1
Dim DISt = 2
Dim TIME = 3
then in subsequent sql queries I can simply say WHERE stat_id = 1...
how do i use it in asp?
ASKER
hopw can i use the dictionary object to achieve this?
Well, the way I do is
set dic = CreateObject("Scripting.Di
dic("objectName") = objectName
dic("libraryid") = libraryid
sql = getObjectListSQL(dic)
then in getobjectlistsql
<%
function getObjectListSQL(dic)
Dim objectName, libraryid
dim Conn
Set Conn = Server.CreateObject("ADODB
Conn.Open Session("Oracle_DSN"), Session("Oracle_Username")
objectName = dic("objectName")
libraryid = dic("libraryid")
if(libraryid = "") then
libraryid = "%"
end if
dim sql
sql = _
" select " & _
" obj.n_id as objectid, " & _
" obj.c_name as objectName, " & _
" obj.c_type as objectType, " & _
" lib.n_id as libraryid, " & _
" lib.c_name as libraryName, " & _
" lve.c_version as libraryVersion, " & _
" lve.d_released as versionDate, " & _
" upper(obj.c_name) " & _
" from " & _
" mrd_object obj, " & _
" mrd_object_instance oin, " & _
" mrd_library_version lve, " & _
" mrd_library lib " & _
" where " & _
" upper(obj.c_name) like '" & ucase(objectName) & "%' AND " & _
" lib.n_id like '" & libraryid & "' AND " & _
" obj.n_id = oin.n_object_id AND " & _
" lib.n_id = oin.n_library_id AND " & _
" lve.n_library_id = lib.n_id AND " & _
" lve.c_version = oin.c_library_version AND " & _
" lve.d_released = (select max(a.d_released) from mrd_library_version a, mrd_object_instance b where a.n_library_id=b.n_library
conn.close
set conn = nothing
getObjectListSQL = sql
The objectname and libraryid are obtained from a previus page.
Let me know and in the meantime let me try to udnestand your other question
set dic = CreateObject("Scripting.Di
dic("objectName") = objectName
dic("libraryid") = libraryid
sql = getObjectListSQL(dic)
then in getobjectlistsql
<%
function getObjectListSQL(dic)
Dim objectName, libraryid
dim Conn
Set Conn = Server.CreateObject("ADODB
Conn.Open Session("Oracle_DSN"), Session("Oracle_Username")
objectName = dic("objectName")
libraryid = dic("libraryid")
if(libraryid = "") then
libraryid = "%"
end if
dim sql
sql = _
" select " & _
" obj.n_id as objectid, " & _
" obj.c_name as objectName, " & _
" obj.c_type as objectType, " & _
" lib.n_id as libraryid, " & _
" lib.c_name as libraryName, " & _
" lve.c_version as libraryVersion, " & _
" lve.d_released as versionDate, " & _
" upper(obj.c_name) " & _
" from " & _
" mrd_object obj, " & _
" mrd_object_instance oin, " & _
" mrd_library_version lve, " & _
" mrd_library lib " & _
" where " & _
" upper(obj.c_name) like '" & ucase(objectName) & "%' AND " & _
" lib.n_id like '" & libraryid & "' AND " & _
" obj.n_id = oin.n_object_id AND " & _
" lib.n_id = oin.n_library_id AND " & _
" lve.n_library_id = lib.n_id AND " & _
" lve.c_version = oin.c_library_version AND " & _
" lve.d_released = (select max(a.d_released) from mrd_library_version a, mrd_object_instance b where a.n_library_id=b.n_library
conn.close
set conn = nothing
getObjectListSQL = sql
The objectname and libraryid are obtained from a previus page.
Let me know and in the meantime let me try to udnestand your other question
ASKER CERTIFIED SOLUTION
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ASKER
regarding the last comment, how could i then use this in a sql query?
Please award/close or advise what else is needed.
Moondancer
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Prior request ignored, finalized.
However I'm not sure I folow what you're trying to do here:
You could do an initial query to look up your ids into a recordset and then use a seek to look up the text value. Or alternatively if your values are more or less sequential, you could use an array. One further method is to create a little activeX object in VB which can instantiate and return a new collection which can act as a very simple hash table.