What is PK NN UQ B UN ZF AI G in MySQL?
The abbreviations are: PK, NN, UQ, BIN, UN, ZF, and AI. I assume that PK means Primary Key and NN means Non-Null, BIN means Binary data (which seems unnecessary), and either UQ or UN means Unique, but I have no idea about the others. Lees verder »
What is PK NN UQ in MySQL?
PK: PRIMARY KEY NN: NOT NULL UQ: UNIQUE INDEX BIN: BINARY UN: UNSIGNED ZF: ZEROFILL AI: AUTO_INCREMENT G: Generated Column This option is available as of MySQL Server 5.7. Lees verder »
What is zf in MySQL?
ZF: ZEROFILL. AI: AUTO_INCREMENT. G: Generated Column. This option is available as of MySQL Server 5.7. Lees verder »
What does uq mean in MySQL?
- UQ: unique (column is part of a unique key) Lees verder »
What does PK mean in MySQL?
In database table design, "PK" stands for Primary Key. A Primary Key is a column (or a combination of columns) that uniquely identifies each row in a table. It ensures that no two rows have the same values in the primary key column(s), and it enforces entity integrity by preventing NULL values. Lees verder »
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