## NMR-STAR dictionary: database table: EntityNaturalSrcList

Detailed description of the fields

### _Entity_natural_src_list.Sf_category (SfCategory)

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NMR-STAR tag name | _Entity_natural_src_list.Sf_category
Description | NMR-STAR name: _Entity_natural_src_list.Sf_category Category assigned to the information in the saveframe.
Database field name | SfCategory
SQL Database type | VARCHAR(127)
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? | yes
Prompt | Sf category
Examples | ?
Help text |

### _Entity_natural_src_list.Sf_framecode (SfFramecode)

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NMR-STAR tag name | _Entity_natural_src_list.Sf_framecode
Description | NMR-STAR name: _Entity_natural_src_list.Sf_framecode Framecode for the save frame where the natural sources for each entity are listed.
Database field name | SfFramecode
SQL Database type | VARCHAR(127)
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? | yes
Prompt | Natural source list label
Examples | ?
Help text |

### _Entity_natural_src_list.Entry_ID (EntryID)

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NMR-STAR tag name | _Entity_natural_src_list.Entry_ID
Description | NMR-STAR name: _Entity_natural_src_list.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 | 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_natural_src_list.Sf_ID (SfID)

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NMR-STAR tag name | _Entity_natural_src_list.Sf_ID
Description | NMR-STAR name: _Entity_natural_src_list.Sf_ID An integer value that is the unique identifier for the saveframe that applies across the archive. This value is not stable and may be reassigned each time the data are loaded into a database system.
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | ,
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_natural_src_list.ID (EntityNaturalSrcListID)

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NMR-STAR tag name | _Entity_natural_src_list.ID
Description | NMR-STAR name: _Entity_natural_src_list.ID An integer value that is the unique identifier for saveframes of the type 'natural_source'.
Database field name | EntityNaturalSrcListID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | ID
Examples | ?
Help text |