Barry Sham created DBCP-581: ------------------------------- Summary: BigDecimal precision lossing when reusing prepared statement for INSERT / UPDATE queries in DB2 Key: DBCP-581 URL: https://issues.apache.org/jira/browse/DBCP-581 Project: Commons DBCP Issue Type: Bug Affects Versions: 2.9.0, 1.4 Environment: *Java Version*
+DBCP 1.4+ * IBM 64-bit SDK for Windows AMD64/EM64T architecture, Java Technology Edition, Version 7 Release 1 * Open JDK Zulu 8.31.0.1 +DBCP 2.9.0+ * Open JDK Zulu 8.31.0.1 *Database* +IBM DB2 10.5+ +IBM DB2 11.5+ +MySql Ver 8.0.17 for Linux on x86_64 (MySQL Community Server - GPL)+ Reporter: Barry Sham We use DBCP1.4 (with *poolPreparedStatements enabled*) to insert records that contains {{BigDecimal }}and it will store into a {{Decimal(11, 2)}} column. Although {{BigDecimal }}in the first insertion can be rounded up propertly, the remains _fails_: (see the bottom output) {code:java} 2021-09-07 10:22:13:186 INFO JdbcDbcpTest:81 - JDK version 1.8.0_181 2021-09-07 10:22:13:190 INFO JdbcDbcpTest:83 - [Connection class: org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper] connected to jdbc:db2://localhost:50000/mydb 2021-09-07 10:22:13:232 DEBUG JdbcDbcpTest:103 - [Perform 1 insert] 1 record inserted (value = 0.10999999940395355224609375) 2021-09-07 10:22:13:235 DEBUG JdbcDbcpTest:103 - [Perform 2 insert] 1 record inserted (value = 100.10999999940395355224609375) 2021-09-07 10:22:13:241 INFO JdbcDbcpTest:113 - Execute query SELECT DECTEST FROM TBL_DECTEST 2021-09-07 10:22:13:262 INFO CompareUtils:27 - ******************************* 2021-09-07 10:22:13:263 INFO CompareUtils:28 - * Value set: [0.11, 100.10] 2021-09-07 10:22:13:263 INFO CompareUtils:29 - *******************************{code} Then we upgraded the DBCP from 1.4 to 2.9.0 but the problem still exists: (see the connection class in line 2) {code:java} 2021-09-07 10:22:13:533 INFO JdbcDbcpTest:81 - JDK version 1.8.0_181 2021-09-07 10:22:13:534 INFO JdbcDbcpTest:83 - [Connection class: org.apache.commons.dbcp2.PoolingDataSource$PoolGuardConnectionWrapper] connected to jdbc:db2://localhost:50000/mydb 2021-09-07 10:22:13:562 DEBUG JdbcDbcpTest:103 - [Perform 1 insert] 1 record inserted (value = 0.10999999940395355224609375) 2021-09-07 10:22:13:564 DEBUG JdbcDbcpTest:103 - [Perform 2 insert] 1 record inserted (value = 100.10999999940395355224609375) 2021-09-07 10:22:13:571 INFO JdbcDbcpTest:113 - Execute query SELECT DECTEST FROM TBL_DECTEST 2021-09-07 10:22:13:574 INFO CompareUtils:27 - ******************************* 2021-09-07 10:22:13:574 INFO CompareUtils:28 - * Value set: [0.11, 100.10] 2021-09-07 10:22:13:574 INFO CompareUtils:29 - ******************************* {code} We found all BigDecimal can rounded up properly if we *disable poolPreparedStatements*. However this is not an option due to performance condition. -- This message was sent by Atlassian Jira (v8.3.4#803005)