db2

问题 Let us say I have a table called ABC with 2 columns id(number), content(xml) in DB2. String q="select * from ABC where id=121"; Connection conn = getConnection(dbUrl,schemaName,userName,password); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery(q); while(rs.next()) { //HERE HOW CAN I GET CONTENT COLUMN VALUE IN STRING FORMAT } I have tried rs.getObject(i), rs.getString(i) and rs.getSQLXML(i).getString() but no luck... And I need only db2 solution I have fixed my self

问题 Having two issues at the moment: 1) The below example of wrapping an OS/400 API with an external SQL stored procedure which is further wrapper in a SQL user defined table function both compiles and runs without error, but it returns blanks and zeroes for the job information when passing '*' for the job name (i.e. current job). Any tips on why would be appreciated. Note: If I pass a non-existent job, the QUSRJOBI api correctly throws an error, so the code is behaving partially correct. If I

问题 Having two issues at the moment: 1) The below example of wrapping an OS/400 API with an external SQL stored procedure which is further wrapper in a SQL user defined table function both compiles and runs without error, but it returns blanks and zeroes for the job information when passing '*' for the job name (i.e. current job). Any tips on why would be appreciated. Note: If I pass a non-existent job, the QUSRJOBI api correctly throws an error, so the code is behaving partially correct. If I

问题 I'm using DB2 v9 I have a stored procedure with paramaters that can potentially be passed in as empty strings. Here somer pseudocode for what I'm trying to do: WHERE myColumn.name = IF param1 = '' THEN **disregard this param, all column values are eligible** ELSE myColumn.name = param1; Basically just ignore the param if it is an empty string. If not, apply it as a filter in the WHERE clause. Is this possible to do in DB2? 回答1: SELECT ... FROM ... WHERE param1 = '' OR myColumn.name = param1 ;

问题 I'm getting error code -4220 with null SQL State .the SP "XXXXX" contain VARGRAPHICS data type. Below is complete exception stack trace. SP is executing properly, the error is coming while reading output parameter i.e. execute method called successfully but getString method is giving error. Even if I'm trying to access any method to get output parameter value, error is coming. Just FYI, I tried with latest version of db2 driver but still error persist. com.ibm.db2.jcc.am.SqlException: [jcc]

问题 I want to write a simple function in HSQL so that it is backwards compatible with DB2 functions. In theory I should be able to write a custom function in java and hook it into HSQL. Is there any direction/documentation on just that? 回答1: User defined functions are documented in the HSQLDB Guide. See this section for functions written in Java. http://hsqldb.org/doc/2.0/guide/sqlroutines-chapt.html#src_jrt_routines You can also write your functions in SQL, which is documented in the same

问题 I am accessing DB2 information on an IBM i (AS400) with PHP. With this code: $query = "SELECT * FROM QS36F.MYTABLE WHERE MYFIELD=120006"; $result = db2_prepare($conn, $query); db2_execute($result); $i=0; while($row = db2_fetch_assoc($result) or die(db2_stmt_errormsg())){ $i++; print "Row " . $i . " successful<br />"; } I get: SELECT * FROM QS36F.MYTABLE WHERE MYFIELD=120006 Row 1 successful Row 2 successful Row 3 successful Row 4 successful Data conversion or data mapping error. SQLCODE=-802

问题 File table contains - File_Id and File_data(BLOB) how can I know the size of the binary file stored in File_data column. length function gives the length of file but how to know the size in KB. 回答1: This gives a number in bytes, devide it by 1024 to get size in KB. Select sum(BIGINT(length(blob_column))) from table; 回答2: BLOB Length is not quite the same as size . You first need to answer NO to all of these questions for it to be the file size: Is the BLOB column declared as COMPACT? Is the

问题 In DB2 , I need to do a SELECT FROM UPDATE, to put an update + select in a single transaction. But I need to make sure to update only one record per transaction. Familiar with the LIMIT clause from MySQL's UPDATE option places a limit on the number of rows that can be updated I looked for something similar in DB2's UPDATE reference but without success. How can something similar be achieved in DB2? Edit: In my scenario, I have to deliver 1000 coupon codes upon request. I just need to select

问题 In DB2 , I need to do a SELECT FROM UPDATE, to put an update + select in a single transaction. But I need to make sure to update only one record per transaction. Familiar with the LIMIT clause from MySQL's UPDATE option places a limit on the number of rows that can be updated I looked for something similar in DB2's UPDATE reference but without success. How can something similar be achieved in DB2? Edit: In my scenario, I have to deliver 1000 coupon codes upon request. I just need to select