## NMR-STAR dictionary: database table: EntityCompIndex

Detailed description of the fields

### _Entity_comp_index.ID (EntityCompIndexID)

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NMR-STAR tag name | _Entity_comp_index.ID
Description | NMR-STAR name: _Entity_comp_index.ID Unique ID for the compound in the entity
Database field name | EntityCompIndexID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | ,
Saveframe ID | yes: This tag contains the identifier for this saveframe in the entry.
Row Index | yes: This tag contains the index of this row in the loop, which is used when the data is loaded into a database which has a relational model in which ordering doesn't matter
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Unique ID for the compound in the entity
Examples | ?
Help text |

### _Entity_comp_index.Auth_seq_ID (AuthSeqID)

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NMR-STAR tag name | _Entity_comp_index.Auth_seq_ID
Description | NMR-STAR name: _Entity_comp_index.Auth_seq_ID Author supplied sequence number identifying the position in the sequence of the polymer where the alternate residue or chemical compound is located.
Database field name | AuthSeqID
SQL Database type | CHAR(12)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Author sequence number for the compound in the entity
Examples | ?
Help text |

### _Entity_comp_index.Comp_ID (CompID)

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NMR-STAR tag name | _Entity_comp_index.Comp_ID
Description | NMR-STAR name: _Entity_comp_index.Comp_ID Pointer to '_Chem_comp.ID'
Database field name | CompID
SQL Database type | CHAR(12)
Part of primary Key | no
Foreign Key on table, column | Chem_comp, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Comp ID
Examples | ?
Help text |

### _Entity_comp_index.Comp_label (CompLabel)

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NMR-STAR tag name | _Entity_comp_index.Comp_label
Description | NMR-STAR name: _Entity_comp_index.Comp_label Pointer to a saveframe of the category chem_comp.
Database field name | CompLabel
SQL Database type | VARCHAR(127)
Part of primary Key | no
Foreign Key on table, column | Chem_comp, Sf_framecode
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Chem comp label
Examples | ?
Help text |

### _Entity_comp_index.Sf_ID (SfID)

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NMR-STAR tag name | _Entity_comp_index.Sf_ID
Description | NMR-STAR name: _Entity_comp_index.Sf_ID Pointer to '_Entity.Sf_ID'
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | Entity, Sf_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | yes This field's data is for internal use only and should be hidden in public versiond of the data.
Nulls allowed in database? | yes
Prompt | Sf ID
Examples | ?
Help text |

### _Entity_comp_index.Entry_ID (EntryID)

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NMR-STAR tag name | _Entity_comp_index.Entry_ID
Description | NMR-STAR name: _Entity_comp_index.Entry_ID Pointer to '_Entry.ID'
Database field name | EntryID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Entity, Entry_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Entry ID
Examples | ?
Help text |

### _Entity_comp_index.Entity_ID (EntityID)

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NMR-STAR tag name | _Entity_comp_index.Entity_ID
Description | NMR-STAR name: _Entity_comp_index.Entity_ID Pointer to '_Entity.ID'
Database field name | EntityID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | Entity, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Entity ID
Examples | ?
Help text |