try (PreparedStatement pstmt = con.prepareStatement("SELECT userId,userName,password from myuser", ResultSet.TYPE_FORWARD_ONLY..., ResultSet.CONCUR_READ_ONLY)) { set = new HashSet(); /*ResultSet.CONCUR_READ_ONLY为只读类型, ResultSet.TYPE_FORWARD_ONLY
conn = petadataSource.getConnection(); stmt = conn.prepareStatement(sqlCmd, ResultSet.TYPE_FORWARD_ONLY...} } finally { close(stmt, rs, conn); } } 可知只是prepareStatement时候改变了参数为ResultSet.TYPE_FORWARD_ONLY
MySQL Server Side游标需要满足下面条件: 必须是select语句 设置了fetchSize>0 在mapper文件里面设置 设置了useCursorFetch=true 数据集类型为ResultSet.TYPE_FORWARD_ONLY...= null && this.useCursorFetch && getResultSetType() == ResultSet.TYPE_FORWARD_ONLY && getResultSetConcurrency
// Configure to be Read Only val statement = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY
= ResultSet.TYPE_FORWARD_ONLY) { if (skipResults > 0) { rs.absolute(skipResults);...statementScope.setResultSet(null); } } ibatis存在的逻辑分页问题 从代码中可以看出 ibatis分页查询的逻辑是首先判断 ResulteSet的类型,如果 ResultSet的类型是 ResultSet.TYPE_FORWARD_ONLY...,则使用ResultSet对象的 next()方法,一步一步地移动游标到要取的第一条记录的位置,然后再采用 next()方法取出一页的数据;如果 ResultSet的类型不是 ResultSet.TYPE_FORWARD_ONLY
PreparedStatement preparedStatement = con.prepareStatement(sql, ResultSet.TYPE_FORWARD_ONLY
thePart.asInstanceOf[JdbcPartition] val conn = getConnection() val stmt = conn.prepareStatement(sql, ResultSet.TYPE_FORWARD_ONLY
ps = connection.prepareStatement(sql, ResultSet.TYPE_FORWARD_ONLY,
int resultSetConcurrency) throws SQLException resultSetType - 结果集类型,它是 ResultSet.TYPE_FORWARD_ONLY...resultSetConcurrency - 并发类型;它是 ResultSet.CONCUR_READ_ONLY 或 ResultSet.CONCUR_UPDATABLE 之一 第一个参数值 ResultSet.TYPE_FORWARD_ONLY...以上五个值,可以有三种搭配方式 ResultSet.TYPE_FORWARD_ONLY ResultSet.CONCUR_READ_ONLY 默认 ResultSet.TYPE_SCROLL_INSENSITIVE
conn = petadataSource.getConnection(); stmt = conn.prepareStatement(sqlCmd, ResultSet.TYPE_FORWARD_ONLY
con.createStatement(int,int) 第一个参数: ResultSet.TYPE_FORWARD_ONLY:不滚动结果集; ResultSet.TYPE_SCROLL_INSENSITIVE...Statement createStatement(int resultSetType, int resultSetConcurrency) resultSetType的可选值: ResultSet.TYPE_FORWARD_ONLY
另外ResultSet必须是ResultSet.TYPE_FORWARD_ONLY类型,这个是默认的。也就是说无法向后滚动。
= ResultSet.TYPE_FORWARD_ONLY) { if (rowBounds.getOffset() !
; if (isStreamQuery) { //设置流式查询参数 stmt = conn.prepareStatement(sql, ResultSet.TYPE_FORWARD_ONLY
TYPE_FORWARD_ONLY,并带有 CONCUR_READ_ONLY 并发级别 已创建结果集的可保存性可调用 getHoldability() 确定 resultSetType - 以下 ResultSet 常量之一: ResultSet.TYPE_FORWARD_ONLY...resultSetType, int resultSetConcurrency, int resultSetHoldability) resultSetType - 以下 ResultSet 常量之一: ResultSet.TYPE_FORWARD_ONLY
= 0; sql1 = "select count(*) as rowCount from record"; stmt1 = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY...record WHERE URL = '" + nextLink + "'"; stmt1 = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY
{ conn = DriverManager.getConnection(url, "user", "pass") val statemnt = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY
Cleanup Connection conn = dataSource.getConnection(); @Cleanup Statement stmt = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY...Cleanup Connection conn = dataSource.getConnection(); @Cleanup Statement stmt = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY
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