Java 通过JDBC查询数据库表结构(字段名称,类型,长度等) 发布者:唛唛家的豆子   时间:2012-11-20 17:54:02   Java 通过JDBC查询数据库表结构(字段名称,类型,长度等) 在JDBCPreparedStatement.executeQuery().getMetaData();后,我们可以通过ResultSetMetaData对象查询返回结果集的源数据信息,也就是表结构信息. 示例代码如下: package astar.sutil.db; import java…

Sql中获取表结构(字段名称,类型,长度,说明) SELECT TableName = OBJECT_NAME(c.object_id), ColumnsName = c.name, Description = ex.value, ColumnType=t.name, Length=c.max_length FROM sys.columns c LEFT OUTER JOIN sys.extended_properties ex ON ex.major_id = c.object_id AND…

PostgreSQL数据库中获取表主键名称 一.如下表示,要获取teacher表的主键信息: select pg_constraint.conname as pk_name,pg_attribute.attname as colname,pg_type.typname as typename from pg_constraint inner join pg_class on pg_constraint.conrelid = pg_class.oid inner join pg_attribute…

wp_categories: 用于保存分类相关信息的表.包括了5个字段,分别是: cat_ID – 每个分类唯一的ID号,为一个bigint(20)值,且带有附加属性auto_increment. cat_name – 某个分类的名称,为一个varchar(55)值. category_nicename – 指定给分类的一个便于记住的名字,也就是所谓的slug,这是一个varchar(200)值. category_description – 某个分类的详细说明,longtext型值. cate…

表结构 then d.name else null end) 表名, a.colorder 字段序号,a.name 字段名, ( then '√'else '' end) 标识, (case when (SELECT count(*) FROM sysobjects WHERE (name in (SELECT name FROM sysindexes WHERE (id = a.id) AND (indid in (SELECT indid FROM sysindexkeys WHERE (i…

SELECT  COLUMN_NAME as '列名',COLUMN_COMMENT,DATA_TYPE as '字段类型' ,COLUMN_TYPE as '长度加类型' FROM information_schema.`COLUMNS` where TABLE_NAME like 'crcustomer'…

<dependency> <groupId>com.github.jsqlparser</groupId> <artifactId>jsqlparser</artifactId> <version>0.9</version> </dependency> import java.io.StringReader; import java.util.List; import net.sf.jsqlparser.par…

UPDATE SG_User   SET DefaultOrganizationID = OrganizationID…

if exists (select 1 from sysobjects where name = 'sysproperties'and xtype = 'V')begin    DROP VIEW syspropertiesend    GO    CREATE VIEW syspropertiesAS SELECT class AS id,Minor_id AS sMallid,* from sys.extended_properties -------在sql server 2005中获取表…

1,根据数据库类型拼接不同URL /** * 根据类型不同拼接连接的URL * @param dbType 1:mysql.2:oracle.3:sql server.4:gp * @param ip * @param port * @param databaseName * @return*/ public static String getTestDbUrl(int dbType, String ip, String port, String databaseName){ String ur…