add biz_tb_certificate.md
add biz_company_employment.md
md  lake.md

lake/biz_company_employment.md

+# 经营状况-购地信息
+
+# 存储信息
+    aliyun-mysql-rds
+
+* host: bdp-rds-003.mysql.rds.aliyuncs.com
+* port: 3306
+* user: **
+* password: **
+* database: utn_ng_biz_info
+
+# 建表语句
+
+```sql
\ No newline at end of file