In PL\/SQL, you have the option to export data from database tables using either the DBMS_DATAPUMP package or the EXPDP tool. Two methods are available for you to choose from.<\/p>\n
Option 1: Utilize the DBMS_DATAPUMP package.<\/p>\n
The DBMS_DATAPUMP is an Oracle built-in package for data pump operations. It allows you to export and import database objects and data using PL\/SQL code. Below is an example code of using DBMS_DATAPUMP to export database table data.<\/p>\n
DECLARE<\/p>
-- \u5b9a\u4e49\u53d8\u91cf<\/p>
handle NUMBER;<\/p>
BEGIN<\/p>
-- \u521d\u59cb\u5316\u5bfc\u51fa\u4efb\u52a1<\/p>
handle := DBMS_DATAPUMP.OPEN(operation => 'EXPORT', job_mode => 'SCHEMA', job_name => <\/p>
'EXPORT_TABLE_DATA');<\/p>
-- \u6dfb\u52a0\u8981\u5bfc\u51fa\u7684\u8868<\/p>
DBMS_DATAPUMP.ADD_FILE(handle, file_name => 'EXPORT_TABLE_DATA.dmp', directory => <\/p>
'DATA_PUMP_DIR', filetype => DBMS_DATAPUMP.KU$_FILE_TYPE_DUMP_FILE);<\/p>
DBMS_DATAPUMP.METADATA_FILTER(handle, 'SCHEMA_EXPR', name => '<schema_name>', value => '');<\/p>
DBMS_DATAPUMP.METADATA_FILTER(handle, 'NAME_EXPR', name => '<table_name>', value => '');<\/p>
-- \u5f00\u59cb\u5bfc\u51fa<\/p>
DBMS_DATAPUMP.START_JOB(handle);<\/p>
-- \u7b49\u5f85\u5bfc\u51fa\u5b8c\u6210<\/p>
DBMS_DATAPUMP.WAIT_FOR_JOB(handle, TRUE);<\/p>
-- \u5173\u95ed\u5bfc\u51fa\u4efb\u52a1<\/p>
DBMS_DATAPUMP.CLOSE(handle);<\/p>
END;<\/p>
\/<\/p><\/pre>\n
Please note that in the above code,
and respectively represent the schema name and table name to be exported, you need to replace them with actual values.<\/p>\n Option 2: Utilize the EXPDP tool.<\/p>\n
EXPDP is a command-line tool provided by Oracle for data pump operations. You can export database table data by running the following command in the operating system’s command line interface.<\/p>\n
expdp <\u7528\u6237\u540d>\/<\u5bc6\u7801> DIRECTORY=<\u76ee\u5f55\u540d\u79f0> DUMPFILE=<\u5bfc\u51fa\u6587\u4ef6\u540d>.dmp TABLES=<\u6a21\u5f0f\u540d\u79f0>.<\u8868\u540d\u79f0><\/pre>\nPlease replace the following parts of the above command with the actual values.<\/p>\n
<\u7528\u6237\u540d>: \u6570\u636e\u5e93\u7528\u6237\u7684\u7528\u6237\u540d<\/p>
<\u5bc6\u7801>: \u6570\u636e\u5e93\u7528\u6237\u7684\u5bc6\u7801<\/p>
<\u76ee\u5f55\u540d\u79f0>: \u5bfc\u51fa\u6587\u4ef6\u7684\u76ee\u5f55\u540d\u79f0\uff08\u9700\u8981\u5728\u6570\u636e\u5e93\u4e2d\u63d0\u524d\u521b\u5efa\uff09<\/p>
<\u5bfc\u51fa\u6587\u4ef6\u540d>: \u5bfc\u51fa\u6587\u4ef6\u7684\u540d\u79f0<\/p>
<\u6a21\u5f0f\u540d\u79f0>: \u8981\u5bfc\u51fa\u7684\u6a21\u5f0f\u540d\u79f0<\/p>
<\u8868\u540d\u79f0>: \u8981\u5bfc\u51fa\u7684\u8868\u540d\u79f0<\/p><\/pre>\n
After executing the above command, the exported data will be saved to the specified export file.<\/p>\n
Here are two commonly used methods for exporting database table data. You can choose one based on your own needs.<\/p>\n","protected":false},"excerpt":{"rendered":"
In PL\/SQL, you have the option to export data from database tables using either the DBMS_DATAPUMP package or the EXPDP tool. Two methods are available for you to choose from. Option 1: Utilize the DBMS_DATAPUMP package. The DBMS_DATAPUMP is an Oracle built-in package for data pump operations. It allows you to export and import database […]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-19771","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
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