Revision 2560
Added by sgarg about 19 years ago
| src/edu/ucsb/nceas/metacat/DBUtil.java | ||
|---|---|---|
| 345 | 345 |
serialNumber=dbConn.getCheckOutSerialNumber(); |
| 346 | 346 |
pstmt = |
| 347 | 347 |
dbConn.prepareStatement( |
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"SELECT docid, rev, acc FROM " +
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|
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"SELECT docid, max(rev) FROM " +
|
|
| 349 | 349 |
"( " + |
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"SELECT docid, rev, acc FROM " + |
|
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"(" +
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|
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"SELECT docid, rev, " + |
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"SUBSTR(docid, INSTR(docid, '" + sep + "', 1)+1)+0 acc " + |
|
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"SELECT docid, rev " + |
|
| 354 | 351 |
"FROM xml_documents " + |
| 355 | 352 |
"WHERE docid LIKE ? " + |
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"ORDER BY acc DESC " + |
|
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") " + |
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"WHERE rownum = 1 " + |
|
| 359 | 353 |
"UNION " + |
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"SELECT docid, rev, acc FROM " + |
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"(" +
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"SELECT docid, rev, " + |
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"SUBSTR(docid, INSTR(docid, '" + sep + "', 1)+1)+0 acc " + |
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"SELECT docid, rev " + |
|
| 364 | 355 |
"FROM xml_revisions " + |
| 365 | 356 |
"WHERE docid LIKE ? " + |
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"ORDER BY acc DESC " + |
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") " + |
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"WHERE rownum = 1 " + |
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") " + |
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"ORDER BY acc DESC" |
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") AS subQueryResult" + |
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" GROUP BY docid" |
|
| 371 | 359 |
); |
| 372 | 360 |
|
| 373 | 361 |
pstmt.setString(1,scope + sep + "%"); |
| 374 | 362 |
pstmt.setString(2,scope + sep + "%"); |
| 375 | 363 |
pstmt.execute(); |
| 376 | 364 |
ResultSet rs = pstmt.getResultSet(); |
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boolean tableHasRows = rs.next(); |
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// 0, 1 or 2 possible num of rows |
|
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// get the first one which is the max accnum |
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if (tableHasRows) {
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accnum = rs.getString(1) + sep + rs.getString(2); |
|
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//tableHasRows = rs.next(); |
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|
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int max = 0; |
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String temp = null; |
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|
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while(rs.next()){
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temp = rs.getString(1); |
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if(temp != null){
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temp = temp.substring(temp.indexOf(scope) + scope.length() + 1); |
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try {
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int localid = Integer.parseInt(temp); |
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if (localid > max){
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max = localid; |
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accnum = rs.getString(1) + sep + rs.getString(2); |
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} |
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} catch (NumberFormatException nfe){
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// ignore the exception as it is possible that the |
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// localid in the identifier is not an integer |
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} |
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} |
|
| 383 | 384 |
} |
| 384 | 385 |
|
| 385 | 386 |
pstmt.close(); |
Also available in: Unified diff
Replaced SQL queries in getMaxDocid() which used INSTR with queries which dont use INSTR. Now the INSTR related computation is done in Java code