关于oracle查询用in不能超过1000条的解决办法
三个参数分别为：需要分割的List集合，截取每个的最大长度，字段名
private String getOracleSQLIn(List ids, int count, String field) {
count = Math.min(count, 1000);
int
len = ids.size();
int
size = len % count;
if
(size == 0) {
size = len / count;
}
else
{
size = (len / count) + 1;
}
StringBuilder builder =
new
StringBuilder();
for
(
int
i = 0; i < size; i++) {
int
fromIndex = i * count;
int
toIndex = Math.min(fromIndex + count, len);
String productId = StringUtils.defaultIfEmpty(StringUtils.join(ids.subList(fromIndex, toIndex),
"','"
),
""
);
if
(i != 0) {
builder.append(
" or "
);
}
builder.append(field).append(
" in ('"
).append(productId).append(
"')"
);
}
return
StringUtils.defaultIfEmpty(builder.toString(), field +
" in ('')"
);
}