public int findColumn(java.lang.String columnName) 參數 columnName String,包含資料行的名稱。 傳回值 指出資料行索引的 int。 例外狀況 SQLServerException 備註 這個findColumn 方法是由 java.sql.ResultSet 介面中的 findColumn 方法指定。 如果有多個資料行同名,findColumn 方法會傳回第一個區分大小寫的相符...
AI代码解释 --autoinc:表的auto_increment--avgrowlen:表的平均行长度--checksum:表的checksum--cmin:表的创建时间,以分钟为单位--ctime:表的创建时间,以天为单位--collation:表的排序规则--column-name:表的列名--column-type:表的字段类型--comment:表的注释--createopts:表的创建选项--datafree:表的剩余...
Java.sql.SQLException,关闭的ResultSet;findColumn,at oracle.jdbc.driver.InsentiveScrollableResultSet.ensureOpen... 这个异常字面意思是Resultset已经关闭了...其结果是数据写入目标数据库出错,迁移失败。 但我清楚程序里是一定是没有在读取结束前就关闭连接而导致ResultSet提前关闭的处理的,因为程序里没有这样的逻辑...
1 row in set (0.00 sec) 4:查看当前数据库大小 例如,我要查看INVOICE数据库的大小,那么可以通过下面SQL查看 mysql> use information_schema Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> sele...
Java.Sql 程序集: Mono.Android.dll 将给定ResultSet的列标签映射到其ResultSet列索引。 [Android.Runtime.Register("findColumn", "(Ljava/lang/String;)I", "GetFindColumn_Ljava_lang_String_Handler:Java.Sql.IResultSetInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")] ...
The first step is to define your criteria for a duplicate row. Do you need a combination of two columns to be unique together, or are you simply searching for duplicates in a single column? In this example, we are searching for duplicates across two columns in our Users table: username ...
java.sql.SQLException: Can’t find column Column#371 in schema Column: Unique key: [[test.atdpersonpaycode.personid,test.atdpersonpaycode.timecarddate,test.atdpersonpaycode.startdtm]] 【资源配置】【附件:截图/日志/监控】 sql 内容如下: ...
When a database contains lots of objects, finding a required table or recollecting names of your stored routines can be quite a daunting task. With Search for SQL Server, you no longer need to look through the entire SSMS Object Explorer to locate a required column name, or text in a sto...
T-SQL: How to find incorrect datetime data from "Char" format column Article 01/17/2024 In this article Introduction Solution Introduction One of my colleagues was asked me about problem finding incorrect data but their problem is this column is Char type and find i...
[22:01:29] [WARNING] the SQL query provided does not return any output [22:01:29] [WARNING] in case of continuous data retrieval problems you are advised to try a switch '--no-cast' or switch '--hex' [22:01:29] [WARNING] unable to retrieve column names for table 'user' in da...