现在有物理模型的Excel,将这些Excel转成创建表的DDL,然后反向生成PDM!
代码语言:javascript复制import pandas as pd
# 读取Excel文件
df = pd.read_excel('/Users/zanglikun/Desktop/反向生成数据.xlsx')
current_table_code = None
create_table_sql = ""
previous_table_code = None
previous_table_name = None
for index, row in df.iterrows():
table_code = row['表代码']
table_name = row['表名称']
field_code = row['字段代码']
field_name = row['字段名']
field_comment = row['字段注释']
data_type = row['数据类型']
data_length = row['数据长度']
is_primary_key = row['是否主键(是/否)']
if current_table_code != table_code:
# 如果遇到新表,先输出上一张表的创建表SQL
if create_table_sql:
# 输出删除表的SQL,使用上一个表的表名
drop_table_sql = f"DROP TABLE IF EXISTS {previous_table_code};"
print(drop_table_sql)
print(create_table_sql.rstrip(",n") f"n) COMMENT='{previous_table_name}';")
# 开始新表的创建表SQL
create_table_sql = f"CREATE TABLE {table_code} (n"
current_table_code = table_code
previous_table_code = table_code
previous_table_name = table_name
# 处理字段长度为NaN的情况
if pd.isnull(data_length):
field_info = data_type
else:
field_info = f"{data_type}({data_length})"
# 添加字段信息到创建表SQL
create_table_sql = f" {field_code} {field_info} COMMENT '{field_comment}'"
if is_primary_key.lower() == '是':
create_table_sql = " PRIMARY KEY"
create_table_sql = ",n"
# 输出最后一张表的创建表SQL
if create_table_sql:
drop_table_sql = f"DROP TABLE IF EXISTS {previous_table_code};"
print(drop_table_sql)
print(create_table_sql.rstrip(",n") f"n) COMMENT='{previous_table_name}';")
这个SQL可以直接导入PowerDesigner,逆向生成PDM文件!
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