Convention for Database Tables: Difference between revisions
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[0]{2}───────00─┘ | [0]{2}───────00─┘ | ||
|} | |} | ||
==Data Size Convention== | |||
<source lang="properties"> | |||
;data size convention (where n is integer number) | |||
NUMBER : 1 + 2 + 3 + 6 + 9 + 12 + 15 + 18 + 21 | |||
STRING : 1 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 2^n | |||
DATE : yyyy-MM-dd | yyyy-MM-dd'T'HH:mm:ss.SSS | |||
</source> | |||
==References== | ==References== |
Revision as of 21:16, 26 November 2019
static char *base36enc(long unsigned int value) {
char base36[36] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
/* log(2**64) / log(36) = 12.38 => max 13 char + '\0' */
char buffer[14];
unsigned int offset = sizeof(buffer);
buffer[--offset] = '\0';
do {
buffer[--offset] = base36[value % 36];
} while (value /= 36);
return strdup(&buffer[offset]); // warning: this must be free-d by the user
}
static long unsigned int base36dec(const char *text) {
return strtoul(text, NULL, 36);
}
Types of Table
Order | Code | Types | Purpose | Tables | Views |
---|---|---|---|---|---|
F |
A |
Audit | Audit Tables | M00TA00X00 ~ MZZTAZZX00 |
M00VA00X00 ~ MZZVAZZXZZ
|
D |
E |
Entries | Entries Tables | M00TE00X00 ~ MZZTEZZX00 |
M00VE00X00 ~ MZZVEZZXZZ
|
A |
I |
Identity | Identity Tables | M00TI00X00 ~ MZZTIZZX00 |
M00VI00X00 ~ MZZVIZZXZZ
|
E |
J |
Join | Join Tables n - n | M00TJ00X00 ~ MZZTJZZX00 |
M00VJ00X00 ~ MZZVJZZXZZ
|
G |
L |
Local | Local Tables | M00TL00X00 ~ MZZTLZZX00 |
M00VL00X00 ~ MZZVLZZXZZ
|
B |
M |
Metadata | Metadata Tables | M00TM00X00 ~ MZZTMZZX00 |
M00VM00X00 ~ MZZVMZZXZZ
|
C |
S |
Settings | Settings Tables | M00TS00X00 ~ MZZTSZZX00 |
M00VS00X00 ~ MZZVSZZXZZ
|
H |
V |
Versions | Versions Tables | M00TV00X00 ~ MZZTVZZX00 |
M00VV00X00 ~ MZZVVZZXZZ
|
Nomenclature
[M]{1}────────────────M ─┐ │ [0-9A-Z]{2}───────────00─┼─M00T─┐ │ │ [T|V]{1}──────────────T ─┘ │ │ [A|E|I|J|L|M|S|V]{1}──M ─┐ │ ├─M00 ─┼─M00TM00X00 [0-9A-Z]{2}───────────00─┘ │ │ [X]{1}────────────────X ─┐ │ ├─X00 ─┘ [0-9A-Z]{2}───────────00─┘
Audit Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [A]{1}───────A ─┐ │ ├─A00 ─┼─M00TA00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Entries Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [E]{1}───────E ─┐ │ ├─E00 ─┼─M00TE00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Identity Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [I]{1}───────I ─┐ │ ├─I00 ─┼─M00TI00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Join Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [J]{1}───────J ─┐ │ ├─J00 ─┼─M00TJ00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Local Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [L]{1}───────L ─┐ │ ├─L00 ─┼─M00TL00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Metadata Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [M]{1}───────M ─┐ │ ├─M00 ─┼─M00TM00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Settings Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [S]{1}───────S ─┐ │ ├─S00 ─┼─M00TS00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Versions Tables[M]{1}───────M ─┐ │ [0-9A-Z]{2}──00─┼─M00T─┐ │ │ [T|V]{1}─────T ─┘ │ │ [V]{1}───────V ─┐ │ ├─V00 ─┼─M00TV00X00 [0-9A-Z]{2}──00─┘ │ │ [X]{1}───────X ─┐ │ ├─X00 ─┘ [0]{2}───────00─┘ |
Data Size Convention
;data size convention (where n is integer number)
NUMBER : 1 + 2 + 3 + 6 + 9 + 12 + 15 + 18 + 21
STRING : 1 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 2^n
DATE : yyyy-MM-dd | yyyy-MM-dd'T'HH:mm:ss.SSS