diff --git a/202409/南网仓储/20240918_采购员默认值修改.sql b/202409/南网仓储/20240918_采购员默认值修改.sql
new file mode 100644
index 0000000..ed370d2
--- /dev/null
+++ b/202409/南网仓储/20240918_采购员默认值修改.sql
@@ -0,0 +1,5 @@
+update purchase_check_info set purchaser = null where purchaser = 0;
+update purchase_part_info set purchaser = null where purchaser = 0;
+
+ALTER TABLE purchase_check_info MODIFY COLUMN purchaser int default null comment '采购员';
+ALTER TABLE purchase_part_info MODIFY COLUMN purchaser int default null comment '采购员';
\ No newline at end of file
diff --git a/202409/宁夏机具/20240918_采购员默认值修改.sql b/202409/宁夏机具/20240918_采购员默认值修改.sql
new file mode 100644
index 0000000..ed370d2
--- /dev/null
+++ b/202409/宁夏机具/20240918_采购员默认值修改.sql
@@ -0,0 +1,5 @@
+update purchase_check_info set purchaser = null where purchaser = 0;
+update purchase_part_info set purchaser = null where purchaser = 0;
+
+ALTER TABLE purchase_check_info MODIFY COLUMN purchaser int default null comment '采购员';
+ALTER TABLE purchase_part_info MODIFY COLUMN purchaser int default null comment '采购员';
\ No newline at end of file
diff --git a/202409/重庆机具/20240918_采购员默认值修改.sql b/202409/重庆机具/20240918_采购员默认值修改.sql
new file mode 100644
index 0000000..ed370d2
--- /dev/null
+++ b/202409/重庆机具/20240918_采购员默认值修改.sql
@@ -0,0 +1,5 @@
+update purchase_check_info set purchaser = null where purchaser = 0;
+update purchase_part_info set purchaser = null where purchaser = 0;
+
+ALTER TABLE purchase_check_info MODIFY COLUMN purchaser int default null comment '采购员';
+ALTER TABLE purchase_part_info MODIFY COLUMN purchaser int default null comment '采购员';
\ No newline at end of file