delphi - Oracle OCI determine if field is NCLOB or CLOB -


i looking simple way determine if field in oracle nclob.

when perform attribute on field, 112 (sqlt_clob), regardless of whether or not field clob or nclob. here code snippet of talking about.

associated query: 'select data nclobtest2., data nclob in case.

            ... := 1 cmaxfields  begin   if oci.paramget( stmthandle, oci_htype_stmt, ferrhandle, @apdesc, ) <> oci_success     break; //at point apdesc refers field **data**.  while checkerror( oci.attrget( apdesc, oci_dtype_param, @apname, @anamesz, oci_attr_name, ferrhandle ) ) = oci_still_executing do;  //apname , anamesz, come 'data' , 8, respectively.  8 not 4, because it's unicode environment.  while checkerror( oci.attrget( apdesc, oci_dtype_param, @adbtype, nil, oci_attr_data_type, ferrhandle ) ) = oci_still_executing do;   dbtype := adbtype;  //here problem, adbtype sqlt_clob.

is there no such thing sqlt_nclob? need know if field clob or nclob, can read n/clob later on. know can call lobcharsetform , lobcharsetid if have actual loblocator instance, require many steps.

thank you!

edit: here summary of steps take trying lobcharsetid when defining fields. similar code works find when binding parameters. maybe can tell me step(s) missing.

summary of coding steps:         checkerror( oci.handlealloc( envhandle, @fstmthandle, oci_htype_stmt, 0, nil ) );      //sse, allocating statement handle         checkerror( oci.stmtprepare( stmthandle, ferrhandle, pchar( serversql ), length( serversql )*sizeof(char), oci_ntv_syntax, oci_default ) );         while checkerror( oci.attrget( stmthandle, oci_htype_stmt, @fstmttype, nil, oci_attr_stmt_type, ferrhandle ) ) = oci_still_executing do;         //envhandle , stmthandle must allocated far.  fstmttype comes correctly oci_stmt_select (1).           := 32768;         oci.attrset( stmthandle, oci_htype_stmt, @i, 0, oci_attr_prefetch_memory, ferrhandle );         acode := oci.stmtexecute( fsvchandle, stmthandle, ferrhandle, nrows, noffs, nil, nil, oci_default );         oci.paramget( stmthandle, oci_htype_stmt, ferrhandle, @apdesc, ) <> oci_success         //apdesc contains ociparam         checkerror (oci.descriptoralloc (toracle8connection(asqlparam.owner.owner.connection).envhandle , @loblocator, oci_dtype_lob, 0, nil));         acode := oci.definebypos( stmthandle, @ocidefine( fbind ), ferrhandle, pos, @aloblocator, maxint, sqlt_chr, nil, nil, nil, oci_dynamic_fetch );           checkerror(oci.loblocatorisinit(connection.envhandle, ferrhandle, aloblocator, @islobinitialized));  //returns false... uh oh!         checkerror(oci.lobcharsetid(connection.envhandle, ferrhandle, aloblocator, @lobchar_code));   //crash... oci_invalid_handle

the last 2 lines problematic ones. have poll loblocator's charset. please note loblocator's charset not same define handle's charset. define handle's charset oci_utf16id, while clob's charset might oci_we8mswin1252. same holds sqlcs value, doesn't have match.


Comments

Post a Comment

Popular posts from this blog

toolbar - How to add link to user registration inside toobar in admin joomla 3 custom component -

im trying write component admin side , need add user creation. dont want duplicate existing codes add link. know how add task not simple link toolbar. thx help. if wanting button opens new user screen can try in component: $bar = jtoolbar::getinstance('toolbar'); $bar->appendbutton('link', 'users', 'new user','index.php?option=com_users&task=user.add'); you need add view.html.php file wherever you're creating toolbar. is need?
Read more

linux - disk space limitation when creating war file -

i have 1 gb disk space limitation hosting app , have used 700mb of it. however want create war file directory big (around 600mb) using command : jar -cvf root.war folderpath that's why encounter quota limitation , can't following. i'm looking way delete folder content when it's applying archive conserve disk space take note can't install zip tool in ssh shell ~ the code works on test directories, test first anyway, deletes files. it's not efficient. assumptions: 300mb free space, in destructively compress 600mb folderpath directory. none of files big -- if file in folderpath 300mb or larger, fail. notes: if ' $out ' file exists, nothing. first find pipes file list while , if ' $out ' doesn't exist in loop, create it, don't update -- if does exist, update it. each pass adds 1 more file, deletes unless file directory. after loop finishes delete empty directories too. unset u ; in=folderpath ; out=roo...
Read more

How to provide Authorization & Authentication using Asp.net, C#? -

Image
i have asp.net application in c#. i have provide page authorization specific user/usergroup. i have created 2 tables in database: 1) pagename 2)permissions[insert, update, view, delete] but i'm unable match tables , permissions assigning... can 1 please me, how created tables in database , how coding. please me. you can below explanation. configure access specific file , folder, set forms-based authentication. request page in application redirected logon.aspx automatically. in web.config file, type or paste following code. this code grants users access default1.aspx page , subdir1 folder . <configuration> <system.web> <authentication mode="forms" > <forms loginurl="login.aspx" name=".aspnetauth" protection="none" path="/" timeout="20" > </forms> </authentication> <!-- section denies access files in...
Read more