Question

文件字符串（插入...）超过500k。如何仅使用插入查询导入表数据？样品（超过500k行）

INSERT INTO test(id, tag, group_id, photo_id, user_id, info) VALUES (555, 'city', 4444, 137187954, 67647144, 'ddddd');
INSERT INTO test(id, tag, group_id, photo_id, user_id, info) VALUES (444, 'city', 4444, 137187954, 67647144, 'fffff');
INSERT INTO test(id, tag, group_id, photo_id, user_id, info) VALUES (333, 'city', 4444, 137187954, 67647144, 'fffff');

表：

create table test(
id int,
tag varchar(25),
user_id int,
photo_id int,
group_id int,
info varchar(256))

在表格中加载文件：

mysql> load data local infile "E:/output00000.txt" into table test;
Query OK, 589975 rows affected, 65535 warnings (17.31 sec)
Records: 589975  Deleted: 0  Skipped: 0  Warnings: 3539850

mysql> select count(*) from test;
+----------+
| count(*) |
+----------+
|   589975 |
+----------+
1 row in set (0.68 sec)

mysql> select * from test limit 500, 5;
+------+------+---------+----------+----------+------+
|  id  | tag  | user_id | photo_id | group_id | info |
+------+------+---------+----------+----------+------+
|    0 | NULL |    NULL |     NULL |     NULL | NULL |
|    0 | NULL |    NULL |     NULL |     NULL | NULL |
|    0 | NULL |    NULL |     NULL |     NULL | NULL |
|    0 | NULL |    NULL |     NULL |     NULL | NULL |
|    0 | NULL |    NULL |     NULL |     NULL | NULL |
+------+------+---------+----------+----------+------+
5 rows in set (0.00 sec)

ANSWER ：

将数据更改为：

555 city    4444    137187954   67647144    ddddd
444 city    4444    137187954   67647144    fffff
333 city    4444    137187954   67647144    fffff

执行后：

LOAD DATA LOCAL INFILE "PATH" INTO TABLE test FIELDS TERMINATED BY "\t" LINES TERMINATED BY "\n" (columns)

每百万行约20-30分钟。

Answer 1

您可以使用逗号并提供另一个要插入的值列表：

INSERT INTO tableA (col1, col2, col3)
VALUES (val1, val2, val3)
     , (val4, val5, val6)
     , (val7, val8, val9)

Mysql导入表插入查询

1 个答案: