Introduction to Database System - Summary - Class 9th

<style>/*<link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=1592484512186377870&zx=14af4dc0-f9e9-4df1-b292-fc42284b4055' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=1592484512186377870&zx=14af4dc0-f9e9-4df1-b292-fc42284b4055' rel='stylesheet'/></noscript>
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

<!-- data-ad-client=ca-pub-7160446797591942 -->

</head><body>*/</style>

<style>/*
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/4290687098-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY4RbMoBNpgb54VZhn-m1secGor93g:1715221999879';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d1592484512186377870','//practicalcentre.blogspot.com/2023/07/introduction-to-database-system-summary-class-9th.html','1592484512186377870');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '1592484512186377870', 'title': 'Practical Centre', 'url': 'https://practicalcentre.blogspot.com/2023/07/introduction-to-database-system-summary-class-9th.html', 'canonicalUrl': 'https://practicalcentre.blogspot.com/2023/07/introduction-to-database-system-summary-class-9th.html', 'homepageUrl': 'https://practicalcentre.blogspot.com/', 'searchUrl': 'https://practicalcentre.blogspot.com/search', 'canonicalHomepageUrl': 'https://practicalcentre.blogspot.com/', 'blogspotFaviconUrl': 'https://practicalcentre.blogspot.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': false, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': '', 'encoding': 'UTF-8', 'locale': 'en-GB', 'localeUnderscoreDelimited': 'en_gb', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Practical Centre - Atom\x22 href\x3d\x22https://practicalcentre.blogspot.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Practical Centre - RSS\x22 href\x3d\x22https://practicalcentre.blogspot.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Practical Centre - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/1592484512186377870/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Practical Centre - Atom\x22 href\x3d\x22https://practicalcentre.blogspot.com/feeds/3669334022081384713/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-7160446797591942', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': false, 'adsenseAutoAds': false, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/af0c04622aa32429', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'Twitter', 'key': 'twitter', 'shareMessage': 'Share to Twitter', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en_GB\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': 'Read more', 'pageType': 'item', 'postId': '3669334022081384713', 'postImageThumbnailUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi49qBLc6KCSzue4-pvgstJ2b7VtFPS6Um7Qobw-K6Eq60mrQ7Dhn_6_ZessmjT16QqACa_iB54c5egh2d-p1DlojcI2m_p0hebi52ZBgUsY46mgLU570l1RdnqaFMFlHUX5rCG-_2gmO-_QZULowrHkX2vRQr6LZjFk67COs6KLXItoikFDwtCkYnYhG61/s72-c/introduction-to-database-system-summary-class-9th-1.webp', 'postImageUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi49qBLc6KCSzue4-pvgstJ2b7VtFPS6Um7Qobw-K6Eq60mrQ7Dhn_6_ZessmjT16QqACa_iB54c5egh2d-p1DlojcI2m_p0hebi52ZBgUsY46mgLU570l1RdnqaFMFlHUX5rCG-_2gmO-_QZULowrHkX2vRQr6LZjFk67COs6KLXItoikFDwtCkYnYhG61/s1600/introduction-to-database-system-summary-class-9th-1.webp', 'pageName': 'Introduction to Database System - Summary - Class 9th', 'pageTitle': 'Practical Centre: Introduction to Database System - Summary - Class 9th', 'metaDescription': 'Summary of Introduction to Database System, Chapter 7 Ninth Class Notes according to new examination pattern 2023 Science Group Sindh Board '}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard', 'ok': 'Ok', 'postLink': 'Post link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': 'Introduction to Database System - Summary - Class 9th', 'description': 'Summary of Introduction to Database System, Chapter 7 Ninth Class Notes according to new examination pattern 2023 Science Group Sindh Board ', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi49qBLc6KCSzue4-pvgstJ2b7VtFPS6Um7Qobw-K6Eq60mrQ7Dhn_6_ZessmjT16QqACa_iB54c5egh2d-p1DlojcI2m_p0hebi52ZBgUsY46mgLU570l1RdnqaFMFlHUX5rCG-_2gmO-_QZULowrHkX2vRQr6LZjFk67COs6KLXItoikFDwtCkYnYhG61/s1600/introduction-to-database-system-summary-class-9th-1.webp', 'url': 'https://practicalcentre.blogspot.com/2023/07/introduction-to-database-system-summary-class-9th.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 3669334022081384713}}, {'name': 'widgets', 'data': [{'title': 'Upload Image', 'type': 'Image', 'sectionId': 'upload-image', 'id': 'Image10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'before-blog', 'id': 'HTML11'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'before-post', 'id': 'HTML12'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '3669334022081384713', 'title': 'Introduction to Database System - Summary - Class 9th', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi49qBLc6KCSzue4-pvgstJ2b7VtFPS6Um7Qobw-K6Eq60mrQ7Dhn_6_ZessmjT16QqACa_iB54c5egh2d-p1DlojcI2m_p0hebi52ZBgUsY46mgLU570l1RdnqaFMFlHUX5rCG-_2gmO-_QZULowrHkX2vRQr6LZjFk67COs6KLXItoikFDwtCkYnYhG61/s1600/introduction-to-database-system-summary-class-9th-1.webp', 'showInlineAds': false}], 'footerBylines': [], 'allBylineItems': []}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML13'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML14'}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML16'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML17'}, {'title': 'Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sidebar-static', 'id': 'PopularPosts10', 'posts': [{'title': 'Chemistry 9th - Practical Centre Preparation Paper 2024', 'id': 4513669305798395596}, {'title': 'Computer Studies 9th - Practical Centre Preparation Paper 2024', 'id': 5689804237053842340}, {'title': 'Biology 9th - Practical Centre Preparation Paper 2024', 'id': 5324570613304404771}, {'title': 'Physics 9th - Practical Centre Preparation Paper 2024', 'id': 8295309495815164996}, {'title': 'English 10th - Practical Centre Preparation Paper 2024', 'id': 6248467778138382185}]}, {'title': 'Categories', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label10'}, {'title': '#Recent Post', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML19'}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'sidebar-sticky', 'id': 'HTML20'}, {'title': 'About Us', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'Learn More', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList13'}, {'title': 'Follow Us', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList14'}, {'title': 'Newsletter', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML22'}, {'title': 'Copyright', 'type': 'HTML', 'sectionId': 'copyright', 'id': 'HTML23'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML24'}]}]);
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image10', 'upload-image', document.getElementById('Image10'), {'resize': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML11', 'before-blog', document.getElementById('HTML11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML12', 'before-post', document.getElementById('HTML12'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/233263712-lbx__en_gb.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/13464135-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML13', 'ads-post', document.getElementById('HTML13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML14', 'ads-post', document.getElementById('HTML14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML16', 'ads-post', document.getElementById('HTML16'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML17', 'ads-post', document.getElementById('HTML17'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts10', 'sidebar-static', document.getElementById('PopularPosts10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label10', 'sidebar-static', document.getElementById('Label10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML19', 'sidebar-static', document.getElementById('HTML19'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML20', 'sidebar-sticky', document.getElementById('HTML20'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList13', 'footer-widget', document.getElementById('LinkList13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList14', 'footer-widget', document.getElementById('LinkList14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML22', 'footer-widget', document.getElementById('HTML22'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML23', 'copyright', document.getElementById('HTML23'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'jet-options', document.getElementById('HTML24'), {}, 'displayModeFull'));
</script>
</body>*/</style>