How to create an item of the display of the Image with functions Apex?

Hi everyone :)

I'm working on the 4.1.1.00.23 Apex in an 11g database XE.

I want to display an Image in a report, I can do this by using the ' + BLOB download Format mask + ", but the images displayed in the original format and I want to display the smaller.

I read that you need to create a procedure, a SYNONYM and call them to the src of the img tag. as Zsuzsi Vadasz mentions here
http://blog.hilandco.com/2010/05/How-to-show-BLOB-type-column-as-image.html

But I remember that I was able to create items in reports with the functions of the Apex, I think they were APEX_ITEM package, so I want to know if there is a way to create the '+' display Image + element with a function of APEX.

Thank you.

Diego (SniperCat) wrote:

I'm working on the 4.1.1.00.23 Apex in an 11g database XE.

I want to display an Image in a report

Always specify if "report" means the report standard or interactive.

I can do this by using the ' + BLOB download Format mask + ", but the images displayed in the original format and I want to display the smaller.

I read that you need to create a procedure, a SYNONYM and call them to the src of the img tag. as Zsuzsi Vadasz mentions here
http://blog.hilandco.com/2010/05/How-to-show-BLOB-type-column-as-image.html

This post was obsolete when it was written. Use the built-in support of BLOB.

Resizing of the declarative BLOB images in reports is simple using CSS. Add a style sheet with:

td[headers="PHOTO"] img {
  display: block;
  width: 40px;
  border: 1px solid #999;
  padding: 4px;
  background: #f6f6f6;
}

where the value of the PHOTO in the attribute selector is the ID of the image column table header. Define only a single dimension (in this case the width) will scale the image with the correct proportions. (Background, padding and border properties are just eye candy...)

However, the scaling of the images in the browser in this way is a huge waste of bandwidth and product of lower quality images than to create good scaled down versions using image tools. Image download megapixel and then to reduce them to the size of the thumbnail result in needlessly pushing millions of bytes which will never be seen.

For better performance and image quality, and where you need specific image scaling of the best approach is to use the ORDImage database object to produce thumbnail and preview automatically versions. Unfortunately, this is not possible in Oracle XE as multimedia is not included :-(.

Tags: Database

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