You have to make sure about that before applying these properties for other databases. ( Note : Other database bases may not need these properties, their default batch query execution strategy might be different. To improve performance of query execution for mysql, we can apply properties maxPerformance and rewriteBatchedStatements=true to the data source configuration. batchInsert -> Total time in seconds: 774.8934786 - (13 Minutes Apprx)īatchUpdate -> Total time in seconds: 955.1260053 - (16 Minutes Apprx)ģ.2. Following are the results on 1.2 Million sample records. Let’s run above examples against Mysql database and compare execution times on 1000000 sample records.
Select for update spring jdbctemplate how to#
We have seen couple of examples on how to do batch operations using JdbcTemplate, let’s see performance and optimizations. Log.info("batchUpdate -> Total time in seconds: " + timer.getTotalTimeSeconds()) NamedJdbcTemplate.batchUpdate(sql, params.toArray(MapSqlParameterSource::new)) Source.addValue("updatedAt", new Date()) Source.addValue("name", u.getUserName().toUpperCase()) MapSqlParameterSource source = new MapSqlParameterSource() String sql = "UPDATE `USER` SET USERNAME=:name, UPDATEDTIME=:updatedAt WHERE ID=:id"
Select for update spring jdbctemplate update#
We can use same JdbcTemplate batchUpdate() operation for SQL bulk update queries, for variation let’s use NamedParameterJdbcTemplate. NamedParameterJdbcTemplate Batch Update Example
JdbcTemplate.batchUpdate(sql, new BatchPreparedStatementSetter() void setValues(PreparedStatement ps, int i) throws SQLException 2.
String sql = "INSERT INTO `USER` (USERNAME, PASSWORD, CREATEDTIME, UPDATEDTIME, USERTYPE, DATEOFBIRTH)" For batch operations you can use batch update callback BatchPreparedStatementSetter to set parameter values.
Batch Insert/Update operations must be Transactional. Insert batch example using JdbcTemplate batchUpdate() operation. Optimizing with Asynchronous Batch Updates
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