From: http://blog.csdn.net/linyaoxin/article/details/3160977
Const int * a, int const * a, int * const A, difference, pointer array, array pointer, declaration and definition
Several confusing concepts are recorded hereI. ====== method declared in C
FS/char_dev.c
/**
* _ Register_chrdev ()-create and register a cdev occupying a range of minors* @ Major: Major device number or 0 for Dynamic Allocation* @ Baseminor: First of the requested range of minor numbers* @ Count: the number of minor
Locate the INT $ DBA_CONSTRAINTS definition under $ ORACLE_HOME/rdbms/admin in 12c, dbaconstraints
[oracle@rhel59 admin]$ pwd/u01/app/oracle/product/12.1.0/dbhome_1/rdbms/admin[oracle@rhel59 admin]$ grep -rn 'INT$DBA_CONSTRAINTS' ././e1201000.sql:138
The difference between MySQL int (3) and int (11)Note: M here is not a specific length stored in the database, it was always mistaken for int (3) to store only 3-length numbers, and int (11) would store 11-length numbers, which is a big
Summing up, int (m) Zerofill, plus Zerofill after M to show a little bit of effect, such as int (3) Zerofill, you inserted into the database is 10, then the actual insert is 010, that is, add a 0 in front. if int (3) and int (10) Without Zerofill,
The difference between a MySQL int (3) and an int (11)
Summing up, int (m) Zerofill, plus zerofill after M to show a little bit of effect, such as int (3) Zerofill, you insert into the database is 10, then the actual insertion of 010, that is, add
Mysql int (3) and int (11) Differences, mysqlint
Difference between mysql int (3) and int (11)
In summary, int (M) zerofill, followed by zerofill, then M shows a little effect. For example, if int (3) zerofill is inserted into the database as 10, it
Summing up, int (m) Zerofill, plus Zerofill after M to show a little bit of effect, such as int (3) Zerofill, you inserted into the database is 10, then the actual insert is 010, that is, add a 0 in front. if int (3) and int (10) Without Zerofill,
Summing up, int (m) Zerofill, plus Zerofill after M to show a little bit of effect, such as int (3) Zerofill, you inserted into the database is 10, then the actual insert is 010, that is, add a 0 in front. if int (3) and int (10) Without Zerofill,
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