我有一个巨大的 SQL 查询,其中包含很多字段。这个结果中的大部分数据是每个自我的重复。
以下是部分 SQL 结果供您参考:
RECORD_ID DATE_REC CAB PERSON_ID CODE1 CODE4 CODE2 CODE5 CODE5_VALUE CODE5_SUBVALUE1 CODE5_SUBVALUE2 CODE5_SUBVALUE3 CODE6_SUBVALUE1 CODE6_SUBVALUE2 CODE6_SUBVALUE3
1500747 31.10.2012 2260784 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW PETERSON EARL TOMAS
1500750 31.10.2012 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500711 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500712 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500713 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500714 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500715 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500716 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500717 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500718 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500745 31.10.2012 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500746 31.10.2012 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500748 31.10.2012 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500749 31.10.2012 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500709 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
1500710 29.10.2012 0;4;28; 5664 26 552ec2af-c9d3-4f18-bc84-68d641fdbc5f HF2OUGVG11 JOHNSON DAVID MATTHEW
从上面的请求中可以看出,有很多重复的数据。Oracle 会在序列化时压缩它以通过网络传输吗?