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方法一 【分区表需要另写CREATE TABLE方法，推荐用方法二】
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CREATE TABLE PH_PRESCRIPTION_T AS SELECT * FROM PH_PRESCRIPTION WHERE 1=0;
CREATE TABLE PH_PRESCRIPTION_ITEM_T AS SELECT * FROM PH_PRESCRIPTION_ITEM WHERE 1=0;
CREATE TABLE PH_AUDIT_PRESCRIPTION_T AS SELECT * FROM PH_AUDIT_PRESCRIPTION WHERE 1=0;
CREATE TABLE PH_AUDIT_PRESCRIPTION_ITEM_T AS SELECT * FROM PH_AUDIT_PRESCRIPTION_ITEM WHERE 1=0;

RENAME  PH_PRESCRIPTION TO PH_PRESCRIPTION_19;
RENAME  PH_PRESCRIPTION_T TO PH_PRESCRIPTION;

RENAME  PH_PRESCRIPTION_ITEM TO PH_PRESCRIPTION_ITEM_19;
RENAME  PH_PRESCRIPTION_ITEM_T TO PH_PRESCRIPTION_ITEM;

RENAME  PH_AUDIT_PRESCRIPTION TO PH_AUDIT_PRESCRIPTION_19;
RENAME  PH_AUDIT_PRESCRIPTION_T TO PH_AUDIT_PRESCRIPTION;

RENAME  PH_AUDIT_PRESCRIPTION_ITEM TO PH_AUDIT_PRESCRIPTION_ITEM_19;
RENAME  PH_AUDIT_PRESCRIPTION_ITEM_T TO PH_AUDIT_PRESCRIPTION_ITEM;


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方法二 推荐
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CREATE TABLE PHARMACY_ARCHIVE.PH_PRESCRIPTION_19 AS SELECT * FROM PHARMACY.PH_PRESCRIPTION;
CREATE TABLE PHARMACY_ARCHIVE.PH_PRESCRIPTION_ITEM_19 AS SELECT * FROM PHARMACY.PH_PRESCRIPTION_ITEM;
CREATE TABLE PHARMACY_ARCHIVE.PH_AUDIT_PRESCRIPTION_19 AS SELECT * FROM PHARMACY.PH_AUDIT_PRESCRIPTION;
CREATE TABLE PHARMACY_ARCHIVE.PH_AUDIT_PRESCRIPTION_ITEM_19 AS SELECT * FROM PHARMACY.PH_AUDIT_PRESCRIPTION_ITEM;
TRUNCATE TABLE PHARMACY.PH_PRESCRIPTION;
TRUNCATE TABLE PHARMACY.PH_PRESCRIPTION_ITEM;
TRUNCATE TABLE PHARMACY.PH_AUDIT_PRESCRIPTION;
TRUNCATE TABLE PHARMACY.PH_AUDIT_PRESCRIPTION_ITEM;