我有数千dB文件需要转换为CSV文件。这可以通过一个简单的脚本/批处理文件即将多个数据库转换为CSV
.open "Test.db"
.mode csv
.headers on.
我需要的脚本来打开其他数据库文件,所有具有不同的名称来实现,有没有,这可以被执行,因为我不希望的方式上面写剧本,每个数据库文件
我有数千dB文件需要转换为CSV文件。这可以通过一个简单的脚本/批处理文件即将多个数据库转换为CSV
.open "Test.db"
.mode csv
.headers on.
我需要的脚本来打开其他数据库文件,所有具有不同的名称来实现,有没有,这可以被执行,因为我不希望的方式上面写剧本,每个数据库文件
的sqlite3
命令行外壳允许一些设置,使用命令行参数来完成的,所以你可以简单地在每个数据库文件执行一个简单的SELECT *
为表:
for %%a in (*.db) do sqlite3 -csv -header "%%a" "select * from TableName" > %%~na.csv
(当这不是批处理文件的一部分,但直接从命令行运行时,必须用%
替换%%
。)
感谢您的解决方案,它的工作完美。我可以在30分钟内将30,000个数据库文件转换为CSV文件。 – John
我制作了一个脚本,它将当前目录中的所有db-sqlite文件批量转换为CSV ,名为“sqlite2csv”。那么它会将每个db-sqlite的每个表格输出为一个CSV文件,因此如果您有10个文件和3个表格,则您将获得30个CSV文件。希望它至少能够帮助您制作自己的脚本。
#!/bin/bash
# USAGE EXAMPLES :
# sqlite2csv
# - Will loop all sqlite files in the current directory, take the tables of
# each of these sqlite files, and generate a CSV file per table.
# E.g. If there are 10 sqlite files with 3 tables each, it will generate
# 30 CSV output files, each containing the data of one table.
# The naming of the generated CSV files take from the original sqlite
# file name, prepended with the name of the table.
# check for dependencies
if ! type "sqlite3" > /dev/null; then
echo "[ERROR] SQLite binary not found."
exit 1
fi
# define list of string tokens that an SQLite file type should contain
# the footprint for SQLite 3 is "SQLite 3.x database"
declare -a list_sqlite_tok
list_sqlite_tok+=("SQLite")
#list_sqlite_tok+=("3.x")
list_sqlite_tok+=("database")
# get a lis tof only files in current path
list_files=($(find . -maxdepth 1 -type f))
# loop the list of files
for f in ${!list_files[@]}; do
# get current file
curr_fname=${list_files[$f]}
# get file type result
curr_ftype=$(file -e apptype -e ascii -e encoding -e tokens -e cdf -e compress -e elf -e tar $curr_fname)
# loop through necessary token and if one is not found then skip this file
curr_isqlite=0
for t in ${!list_sqlite_tok[@]}; do
curr_tok=${list_sqlite_tok[$t]}
# check if 'curr_ftype' contains 'curr_tok'
if [[ $curr_ftype =~ $curr_tok ]]; then
curr_isqlite=1
else
curr_isqlite=0
break
fi
done
# test if curr file was sqlite
if ((! $curr_isqlite)); then
# if not, do not continue executung rest of script
continue
fi
# print sqlite filename
echo "[INFO] Found SQLite file $curr_fname, exporting tables..."
# get tables of sqlite file in one line
curr_tables=$(sqlite3 $curr_fname ".tables")
# split tables line into an array
IFS=$' ' list_tables=($curr_tables)
# loop array to export each table
for t in ${!list_tables[@]}; do
curr_table=${list_tables[$t]}
# strip unsafe characters as well as newline
curr_table=$(tr '\n' ' ' <<< $curr_table)
curr_table=$(sed -e 's/[^A-Za-z0-9._-]//g' <<< $curr_table)
# temporarily strip './' from filename
curr_fname=${curr_fname//.\//}
# build target CSV filename
printf -v curr_csvfname "%s_%s.csv" $curr_table "$curr_fname"
# put back './' to filenames
curr_fname="./"$curr_fname
curr_csvfname="./"$curr_csvfname
# export current table to target CSV file
sqlite3 -header -csv $curr_fname "select * from $curr_table;" > $curr_csvfname
# log
echo "[INFO] Exported table $curr_table in file $curr_csvfname"
done
done
你正在使用哪个操作系统? –
Windows(Windows 2008 R2) – John
表名是否相同? –