public static void main(String[] args) throws SQLException, IOException { LoadCSVFile load = new LoadCSVFile(); Connection conn = load.getConnection(); // 查看表中目前的数据,并清空表 String[] initArray = {"truncate table test"}; load.executeSQL(conn, initArray); // 这里的核心就是使用o...
准备CSV文件:首先,确保CSV文件包含正确的数据,并且与目标表的结构相匹配。确保文件的编码与数据库的编码一致。 创建目标表:在数据库中创建一个与CSV文件数据结构相匹配的表。可以使用CREATE TABLE语句定义表的列和数据类型。 使用COPY命令导入数据:使用COPY命令将CSV文件的内容导入到目标表中。以下是一个示例命令: 使...
1loaddata2CHARACTERSET UTF83infile "/home/oracle/hthhf.csv"4truncate5intotablet_yw_hthhf_old6fields terminatedby","7OPTIONALLY ENCLOSEDBY'"'8trailing nullcols9(10列名1integerexternal ,11列名2timestamp"YYYY-MM-DD hh24:mi:ss" ,12列名3,13列名4floatexternal14) 表示将/home/oracle/hthhf.csv的...
Now that we have the data in a file and the structure in our database, let’s import the .csv file into the table we just created. We will use the COPY command to copy all the records from the .csv file to the table “usa”. Here is the copy command for your reference: \COPY ...
測试CSV文件: t1.csv MySQL 自身的loader: (时间24妙) mysql> load data infile '/tmp/t1.csv' into table t1 fields terminated by ',' enclosed by '"' lines terminated by '\r\n'; Query OK, 1000000 rows affected (24.21 sec) Records: 1000000 Deleted: 0 Skipped: 0 Warnings: 0 ...
在跳过重复项时将CSV导入PostgreSQL是将CSV文件中的数据导入到PostgreSQL数据库中,并且在导入过程中跳过已经存在于数据库中的重复数据项。 CSV文件:CSV(逗号分隔值)是一种常见的文件格式,用于存储表格数据。它使用逗号作为字段之间的分隔符。 PostgreSQL:PostgreSQL是一种强大的开源关系型数据库管理系统,具有高度的可扩展...
LOAD DATA INFILE '/path/to/file.csv' INTO TABLE users FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n'; PostgreSQL COPY users FROM '/path/to/file.csv' DELIMITER ',' CSV HEADER; 对比:MySQL使用LOAD DATA INFILE,PostgreSQL使用COPY命令。
This data contains two columns: ‘name’ and ‘price.’ Name appears to be a VARCHAR due to it’s different lengths. Price appears to be MONEY. This will help in creating the table to load the CSV file into. The first step, as stated before, is to create the table. It must have ...
INSERT INTO table [ ( column [, ...] ) ] { DEFAULT VALUES | VALUES ( { expression | DEFAULT } [, ...] ) | query }LISTEN监听一个通知。LISTEN nameLOAD加载或重载一个共享库文件。 LOAD 'filename'LOCK锁定一个表。LOCK [ TABLE ] name [, ...] [ IN lock_mode MODE ] [ NOWAIT ]...
Import CSV file into Table– show you how to import CSV file into a table. Export PostgreSQL Table to CSV file– show you how to export tables to a CSV file. Section 12. Managing Tables In this section, you will begin exploring the PostgreSQL data types and learn how to create new tab...