1. First query free space
select tablespace_name,file_id,block_id,bytes,blocks from dba_free_space;
2. Add Oracle tablespace
First, query the data file name, size, and path information. The statement is as follows:
select tablespace_name,file_id,bytes,file_name from dba_data_files;
3. The statement for modifying the file size is as follows:
Alter database datafile the path of the data file to be added, that is, the path 'resize 800 m;
4. Create a
specific conditions, such as the smallest screen width. The media query in the style sheet appears as shown in the example in Listing 2.Listing 2. Media query Rules@media all and (min-width:800px) {...}According to the markup in Listing 2, all screens with a minimum horizontal screen width of 800 pixels (screen and print, etc.) should use the following CSS rules. The rule in the example where the ellipsis is located. For this media query:
@m
becomes more powerful through expressions, giving you more flexibility to use custom display rules for specific design scenarios.A media query contains a media type followed by one or more expressions that check for specific conditions, such as the smallest screen width. The media query in the style sheet appears as shown in the example in Listing 2.Listing 2. Media query Rules@media all and (min-width:800px) {...}According to the markup in Listing 2, all screens with a minimum horizontal scree
in the style sheet appears as shown in the example in Listing 2.Listing 2. Media query Rules@media all and (min-width:800px) {...}According to the markup in Listing 2, all screens with a minimum horizontal screen width of 800 pixels (screen and print, etc.) should use the following CSS rules. The rule in the example where the ellipsis is located. For this media query:
@media allIs the media type, that is, applies this CSS to all media types.
In Linux we commonly used firewall is iptables, but many friends do not know how to quickly iptables firewall to specify the port range, below I give you introduce.I need a port between 700 and 800 to have TCP access
The code is as follows
Copy Code
-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 700-j ACCEPT-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 701-j ACCEPT-A rh-firewall-1-input-
, sending 881 requests to the 10.10.2.200:881 port
Iptables-t nat-a postrouting-s 10.10.0.0/16-d 10.10.2.200-p tcp-m tcp--dport 881-j SNAT--to-source; return A . B.B.D when the data source comes from the same subnet, changes its source address to 10.10.1.1, emits from eth0, and detects a.b.c.d from Ppp0 in the connection tracking table and emits this data from ppp0.
Of course, don't forget to add a statement that allows access to port 881. Iptables–a input–p tcp–dport 881–i ppp0–j ACCEPT
Can not
authentication session deadlock(1) View which session the blocked sid:800 session is blocked bySelect Sid,serial#,sql_id,status,blocking_session from V$sessionwhere sid=800;
Sid
serial#
sql_id
Status
Blocking_session
800
28777
2d0msz9tv9z5c
ACTIVE
347
From above, the ID of the SQL
I. About layout adaptation1. Do not use absolute layout2, try to use match_parent instead of fill_parent.3, can use the heavy place as far as possible to use the weight (android:layout_weight)4, if it is a solid color background, try to use the shape of android to Customize.5. If you need to fit at a specific resolution, you can create a new layout-hxw.xml folder on the res directory . For example, to fit the 1080*1800 screen (Meizu MX3 with this resolution), create a new layout-1800x1080.xml f
expression with the temporary variable. (If this part is repeated in the code, you can replace it one by one.) (3) Compile and test. (4) Repeat the above process to process other similar parts.
In this example, we start with a simple calculation:
// Double price () {// price = basePrice-quantity discount + shippingreturn _ quantity * _ itemPrice-Math. max (0, _ quantity-800) * _ itemPrice * 0.15 + Math. min (_ quantity * _ itemPrice * 0.25, 100 );}T
information is implemented in three ways
(1): implicit type conversion
Select *
From emp
Where hiredate> '01-August 1-81 ';
(2): Convert string to date .. convert display type
Select *
From emp
Where hiredate> to_date ('1970-01-010', 'yyyy-mm-dd hh24: mi: ss ');
(3): converts a date to a string of the date type:
Select *
From emp
Where to_char (hiredate, 'yyyy-mm-ddhh24: mi: ss')> '2017-01-01 02:03:04'
5. convert numbers and strings
A -- query the employee's salary: two decimal local currency c
suitable for computer color screens.
Print applies to what you see in Print Preview mode or what your printer prints.
As part of the CSS V3 specification, you can extend the media type function and allow more precise display rules to be used in the style sheet. Media Queries are an expression that evaluates to True or False. If true, the style sheet continues to be used. If False, the style sheet cannot be used. This simple logic becomes more powerful through expressions, giving you mo
I. About layout adaptation1. Do not use absolute layout2, try to use match_parent instead of fill_parent.3, can use the heavy place as far as possible to use the weight (android:layout_weight)4, if it is a solid color background, try to use the shape of android to Customize.5. If you need to fit at a specific resolution, you can create a new layout-hxw.xml folder on the res directory . For example, to fit the 1080*1800 screen (Meizu MX3 with this resolution), create a new layout-1800x1080.xml f
customers feel better, corporate image or there is a great upgrade. One , the number of advertising calls increased, advertising effect increased 30% aboveAccording to our market research on the opening of enterprises, the same customer advertising with 400 and ordinary telephone call rate increased by 30%, high call rate means that the turnover rate is certainly high, the purpose of advertising is not to let customers call the company? So be sure to choose a customer willing to call, so NO. 40
, the working modes of memory and CPU have changed, and the concept of Front-End bus has become somewhat complicated. The Pentium 4 CPU uses quad pumped (4 times of concurrency) technology, which enables the system bus to transmit four times of data in a clock cycle, that is, the transmission efficiency is four times the original, it is equivalent to using four original front-end buses to connect to the memory. When the external frequency is still 133 MHz, the speed of the front-end bus is incre
graphics G31, there are currently 7 models.
Bearlake's 7 models, commercial-oriented to start with Q, including Q35 and Q33, for the household including high-end products and two series of mainstream products, high-end products have X38, mainstream products have P35, G35, G33 and later joined the G31. Where the G Word starts with a motherboard chipset product with integrated graphics.
High-end X38: Support Quad core processor, ddr3-1333 memory, PCI-E 2.0, pci-e x16x2, front-end bus 1333MHz, w
these features and dynamically splice image URLs; 2) use the sizes and srcset attributes in HTML, the picture tag, or the image-set attribute in CSS to implement responsive images. Solution 1 is very simple. I skipped it here. solution 2 has many related articles on the Internet. If you are not familiar with it, you can search for "responsive images.
Here, let's take a look at the responsive Image Code (via) implemented by picture, sizes, and srcset mentioned in solution 2 ):
HTML
media="(min-
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