我知道这里有很多这样的错误,但这个查询似乎不同,因为它是一个插入查询。这是表 card_info 的架构:
CREATE TABLE card_info (
card_id mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
card_name_orig varchar(150) NOT NULL,
card_name_html varchar(150) NOT NULL,
card_name_search varchar(150) NOT NULL,
card_name_page varchar(150) NOT NULL,
card_cost varchar(50) DEFAULT NULL,
card_cost_converted tinyint(2) NOT NULL DEFAULT '0',
card_subtype varchar(75) DEFAULT NULL,
card_oracle_text_orig text,
card_oracle_text_html text,
card_power varchar(10) DEFAULT NULL,
card_toughness varchar(10) DEFAULT NULL,
card_loyalty tinyint(1) DEFAULT NULL,
PRIMARY KEY (card_id),
KEY card_name_nd (card_name_search),
KEY card_name_page (card_name_page),
KEY card_cost_converted (card_cost_converted),
KEY card_power (card_power),
KEY card_toughness (card_toughness),
KEY card_loyalty (card_loyalty), …Run Code Online (Sandbox Code Playgroud) 我需要批处理 file.bat 来做
我有 filename.txt 内容:
blah blah
....
Miss Phuong
I love you all. Miss Phuong
End of file
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如果该行不存在,我想在末尾插入以下行:
I love you all
Miss Phuong
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运行后是:
blah blah
....
Miss Phuong
I love you all. Miss Phuong
End of file
I love you all
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由于线路存在,“Miss Phuong”将不会被添加。将添加“我爱你们所有人”,因为存在字符串“我爱你们所有人”,但该行是“我爱你们所有人。Phuong 小姐”
谢谢
我有两张桌子.Table A是主表和table B辅助表.现在我需要复制table B到table A只有aux_id不存在的行table A
TABLE_A
id |aux_id | firstname | lastname
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表-B
aux_id | firstname | lastname
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我在尝试什么,但显然没有成功.
INSERT INTO table_A(aux_id,firstname,lastname)(SELECT aux_id,firstname,lastname FROM table_B WHERE aux_id != aux_id);
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我正进入(状态 : INSERT 0 0
这是错误的,因为我确信我在表B中有新条目.
我正在尝试使用以下测试代码来测试新的PostgreSQL upsert语法,但是出现语法错误:
test=> CREATE TABLE test1 (
test(> key1 integer PRIMARY KEY check (key1 > 0),
test(> key2 integer check (key2 > 0)
test(> );
CREATE TABLE
test=> CREATE OR REPLACE FUNCTION upsert(IN in_json_array jsonb)
test-> RETURNS void AS
test-> $func$
test$> UPDATE test1 t SET
test$> t.key1 = (obj->>'key1')::int,
test$> t.key2 = (obj->>'key2')::int
test$> FROM JSONB_ARRAY_ELEMENTS(in_json_array) obj
test$> WHERE t.key1 = obj->'key1'
test$> ON CONFLICT DO UPDATE SET
test$> key1 = excluded.key1,
test$> key2 = excluded.key2;
test$>
test$> …Run Code Online (Sandbox Code Playgroud) 在将新行插入MongoDB集合时,是否仍可以查询旧记录?
在这方面,WiredTiger和MMAPv1有什么区别吗?
我有以下问题:
有一个文件,制表符分隔:
Code1 Number1 Name1 Phone1
Code2 Number2 Name2 Phone2
Code3 Number3 Name3 Phone3
Code4 Number4 Name4 Phone4
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我有一个文件:
Surname 1
Surname 2
Surname 3
Surname 4
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我想要的输出是:
Code1 Number1 Name1 Surname1 Phone1
Code1 Number1 Name1 Surname2 Phone1
Code1 Number1 Name1 Surname3 Phone1
Code1 Number1 Name1 Surname4 Phone1
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我知道我可能必须使用awk,但我只知道如何在其他人之间插入一个固定值的列,使用:
awk '{ $2=$2"newvalue" print $0 }'
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但是我不知道如何从另一个文件中读取行并将它们存储在newvalue中以关闭上面所需的输出.我不需要特定的awk建议.谢谢您的帮助.
我试图使用perl 将二进制文件(JPG图像)插入MySQL数据库
表:
CREATE TABLE `images` (
`sku` CHAR(12) NOT NULL,
`index` TINYINT(1) UNSIGNED NOT NULL,
`main` BLOB NULL
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB
ROW_FORMAT=DYNAMIC
;
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Perl的:
$dbh_local = DBI->connect("DBI:mysql:database=db;host=127.0.0.1;mysql_enable_utf8=1", "XXX", "XXX", {'RaiseError' => 1, 'mysql_auto_reconnect' => 1});
open IMAGE, "c:/image.jpg" or die $!;
while(read IMAGE, $buff, 1024) {
$image .= $buff;
}
close(IMAGE);
my $sku = 'VM1000032999';
my $index = 1;
$query = "INSERT INTO images (sku,index,main) values (?,?,?)";
$sth = $dbh_local->prepare($query);
$sth->bind_param(1,$sku);
$sth->bind_param(2,$index);
$sth->bind_param(3,$image, DBI::SQL_BLOB);
$sth->execute();
$sth->finish();
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但是我收到此错误: …
我有这个数据集:
structure(list(Event = structure(c(2L, 2L, 1L, 2L, 2L, 2L, 2L,
1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L), .Label = c("Insert",
"Ok"), class = "factor")), .Names = "Event", class = "data.frame", row.names = c(NA,
-18L))
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每当有"插入"时我想在下面插入一个空行:
我如何在R中执行此操作?
任何人都可以帮助我以下数据插入代码的问题是什么?
SQLSTATE [42S22]:找不到列:1054'字段列表'中的未知列'标题'(SQL:插入gallery_categories(title,description,category_id,image,updated_at,created_at)值(测试标题,测试详细信息,1,1512370315 .jpg,2017-12-04 06:51:55,2017-12-04 06:51:55))
我有两个型号.GalleryModel和GalleryCategoryModel中的一个.当我使用dd($request->all());它然后它调试完美.
NB:我是laravel的新人.
GalleryModel模型
class GalleryModel extends Model
{
protected $table = 'galleries';
protected $primaryKey = 'id';
protected $fillable = ['title', 'description', 'image', 'category_id'];
}
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这是我的GalleryCategoryModel模型
class GalleryCategoryModel extends Model
{
protected $table = 'gallery_categories';
protected $primaryKey = 'id';
protected $fillable = ['name'];
}
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我的控制器GalleriesController
public function create()
{
$categories = GalleryCategoryModel::all();
return view('pages.backend.galleries.create')->withCategories($categories);
}
public function store(StoreGalleryRequest $request)
{
$gallery = new GalleryCategoryModel;
$gallery->title = $request->title;
$gallery->description = $request->description;
$gallery->category_id = $request->category_id; …Run Code Online (Sandbox Code Playgroud) 我想在SQL表中插入一些数据.但是在插入int时,无论我尝试过什么,我都会收到错误:
System.Data.SqlClient.SqlException:'将varchar值'@ID'转换为数据类型int时转换失败.
我甚至手动将ID设置为1只是为了100%确定它是int但仍然得到该错误
String query = "INSERT INTO table(dbo.table.ID, dbo.table.secondvar)
VALUES ('@ID','@secondvar')";
using (SqlCommand cmd = new SqlCommand(query, connection))
{
int ID = 1;
cmd.Parameters.AddWithValue("@ID", ID);
cmd.Parameters.AddWithValue("@secondvar", tableModel.secondvar);
connection.Open();
int result = cmd.ExecuteNonQuery();
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