main
黄海 2 years ago
parent 5b18cb3715
commit d921fb0a6b

@ -71,7 +71,6 @@ INSERT INTO "public"."t_base_student" VALUES (2, '李四');
ALTER TABLE "public"."t_base_student" ADD CONSTRAINT "t_base_student_pkey" PRIMARY KEY ("student_id"); ALTER TABLE "public"."t_base_student" ADD CONSTRAINT "t_base_student_pkey" PRIMARY KEY ("student_id");
# 查询孤儿序列没有字段绑定的也没有被使用在系统中占用资源如果序列被绑定到一个serial类型的字段删除该表时序列会被自动删除如果时int类型则不会被删除所以在大型数据库系统中应注意过多孤儿序列的产生 # 查询孤儿序列没有字段绑定的也没有被使用在系统中占用资源如果序列被绑定到一个serial类型的字段删除该表时序列会被自动删除如果时int类型则不会被删除所以在大型数据库系统中应注意过多孤儿序列的产生
SELECT ns.nspname AS schema_name, seq.relname AS seq_name SELECT ns.nspname AS schema_name, seq.relname AS seq_name
FROM pg_class AS seq FROM pg_class AS seq

@ -185,6 +185,13 @@
<version>8.0.30</version> <version>8.0.30</version>
</dependency> </dependency>
<!-- https://mvnrepository.com/artifact/org.opengauss/opengauss-jdbc -->
<dependency>
<groupId>org.opengauss</groupId>
<artifactId>opengauss-jdbc</artifactId>
<version>5.0.0</version>
</dependency>
<!--引用gson--> <!--引用gson-->
<dependency> <dependency>
<groupId>com.google.code.gson</groupId> <groupId>com.google.code.gson</groupId>

@ -12,8 +12,8 @@ import java.util.List;
public class TestOpenGauss { public class TestOpenGauss {
public static void main(String[] args) { public static void main(String[] args) {
//读取库 //读取库
DruidPlugin druid = new DruidPlugin("jdbc:postgresql://10.10.14.62:5432/ccdjzswd_db", "dsideal", DruidPlugin druid = new DruidPlugin("jdbc:opengauss://10.10.14.62:5432/ccdjzswd_db", "dsideal",
"DsideaL147258369", "org.postgresql.Driver"); "DsideaL147258369", "org.opengauss.Driver");
druid.start(); druid.start();
ActiveRecordPlugin arp = new ActiveRecordPlugin(druid); ActiveRecordPlugin arp = new ActiveRecordPlugin(druid);

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