Oracle

Mixing DDL and DML statements in a single script

由 |▌冷眼眸甩不掉的悲伤 提交于 2021-01-28 21:21:32
问题 I'm writing a script that will add an ID column to a table, including all the sequences and triggers to keep it automatically up to date. It will perform the following: Add a column to a table Create a sequence Create a trigger Update existing rows to use sequence values Set the field to not nullable The problem I have is with the line in bold - it would be an UPDATE statement in a DDL script. The error I get is: PLS-00103: Encountered the symbol "UPDATE" I've tried wrapping the UPDATE in a

Java query with DB Link does not close the Db Link connection

由 点点圈 提交于 2021-01-28 19:49:47
问题 I have a Java code that connects to Database A. Database A has DB link to Database B. Both database are oracle. I make a JPA connection to Database A Then I run a query from joining a table from DAtabase A to table in Database B Then Close connection to Database A Simple code. I am still seeing the DB link connections on Database B is open. It is not closing. Any idea why? I am assuming that it should be internally handled right? Thoughts? 回答1: If you close a connection to the database all

Oracle SQL: Get top 3 results per “category” [duplicate]

由 冷暖自知 提交于 2021-01-28 19:31:50
问题 This question already has answers here : Get top results for each group (in Oracle) (5 answers) Limit SQL query to only the top two counts per group [duplicate] (1 answer) First two salaries in each department [duplicate] (3 answers) Closed 2 years ago . I have an Oracle-db-table with multiple sportsteams and sports. Now I need to get the 3 teams (Or less if less than 3 teams) with the lowest id for each sport (based on their id). (In my example Soccer: Barcelona, Real Madrid, PSG / Hockey:

Trying to know which tables are executed in the oracle external application

由 有些话、适合烂在心里 提交于 2021-01-28 18:59:48
问题 I wonder if this could be possible or not. I am using TOAD, connected to an oracle database (11g) and i have access to the oracle E-BUSINESS-SUITE application. Basically, i want Toad to trace what sql are being executed by the oracle E-BUSINESS-SUITE application I have this query: SELECT nvl(ses.username,'ORACLE PROC')||' ('||ses.sid||')' USERNAME, SID, MACHINE, REPLACE(SQL.SQL_TEXT,CHR(10),'') STMT, ltrim(to_char(floor(SES.LAST_CALL_ET/3600), '09')) || ':' || ltrim(to_char(floor(mod(SES.LAST

Oracle to MySQL timestamp conversion in MySQL insert statement

由 孤街醉人 提交于 2021-01-28 18:12:31
问题 I've already exported data from an Oracle 11g instance as insert statements. They need to go into a MySQL 5.5 instance. Having trouble with the TIMESTAMP conversion; I know I can use the TO_TIMESTAMP function inline with INSERT statements in MySQL; however, am unsure as to the correct flags to use. As follows below, in linear order, is: the Oracle timestamp statement and my attempt at a MySQL compatible statement. Obviously it's not working (in that MySQL states there's a syntax error).

fastmybatis编写分表插件

由 那年仲夏 提交于 2021-01-28 17:49:31
fastmybatis 支持原生的插件，将写好的插件配置到mybatis配置文件中即可 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <plugins> <plugin interceptor="xxxxx.MyInterceptor" /> </plugins> </configuration> 这里演示编写一个分表插件 假设有4张分表，user_log0~3，记录用户的日志情况 user_log0 user_log1 user_log2 user_log3 现在需要动态查询指定到某一张表 首先生成对应的实体类，指定一张表生成，不用全部生成 /** * 表名：user_logX * %index% 占位符 */ @Table(name = "user_log%index%") public class UserLog { ... } 注意 %index% 占位符 Mapper不变 public interface UserLogMapper extends CrudMapper

Unable to initialize point cloud - ORA-13249: Error creating dml trigger

由 冷暖自知 提交于 2021-01-28 15:59:12
问题 I'm unable to initialize point cloud in Oracle Database 12c. Trying to execute following commands: CREATE TABLE point_clouds( id NUMBER, capture_ts TIMESTAMP, point_cloud SDO_PC ); CREATE TABLE pc_blocks AS select * from mdsys.sdo_pc_blk_table; INSERT INTO point_clouds (id, point_cloud) VALUES ( 1001, sdo_pc_pkg.init( basetable => 'point_clouds', basecol => 'point_cloud', blktable => 'pc_blocks', ptn_params => 'blk_capacity=10000', pc_extent => mdsys.sdo_geometry( 2003, 8307, null, mdsys.sdo

Distinct rows with non-null values taking precedence over nulls

由 痴心易碎 提交于 2021-01-28 14:01:42
问题 I have two duplicated two rows except one column of the row has null value and another one has some value. For example CarName Owner PreviousOwner Honda XXX YYYYY Honda XXX Nissan ZZZ AAAA Nissan ZZZ BMW BBB Benz CCC DDD OUTPUT should be Honda XXX YYYYY Nissan ZZZ AAAA BMW BBB Benz CCC DDD Can you please help me to write a query for this. 回答1: Check this select CarName, Owner, max(PreviousOwner) from t group by CarName, Owner 回答2: If we were to order the records such that the previous owner

Distinct rows with non-null values taking precedence over nulls

由 佐手、 提交于 2021-01-28 14:01:10
问题 I have two duplicated two rows except one column of the row has null value and another one has some value. For example CarName Owner PreviousOwner Honda XXX YYYYY Honda XXX Nissan ZZZ AAAA Nissan ZZZ BMW BBB Benz CCC DDD OUTPUT should be Honda XXX YYYYY Nissan ZZZ AAAA BMW BBB Benz CCC DDD Can you please help me to write a query for this. 回答1: Check this select CarName, Owner, max(PreviousOwner) from t group by CarName, Owner 回答2: If we were to order the records such that the previous owner

Sqoop import job error org.kitesdk.data.ValidationException for Oracle

由 ￡可爱￡侵袭症＋ 提交于 2021-01-28 12:44:02
问题 Sqoop import job for Oracle 11g fails with error ERROR sqoop.Sqoop: Got exception running Sqoop: org.kitesdk.data.ValidationException: Dataset name 81fdfb8245ab4898a719d4dda39e23f9_C46010.HISTCONTACT is not alphanumeric (plus '_') here's the complete command: $ sqoop job --create ingest_amsp_histcontact -- import --connect "jdbc:oracle:thin:@<IP>:<PORT>/<SID>" --username "c46010" -P --table C46010.HISTCONTACT --check-column ITEM_SEQ --target-dir /tmp/junk/amsp.histcontact -as-parquetfile -m 1
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