## NMR-STAR dictionary: database table: SampleConditionVariable

Detailed description of the fields

### _Sample_condition_variable.Type (Type)

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NMR-STAR tag name | _Sample_condition_variable.Type
Description | NMR-STAR name: _Sample_condition_variable.Type The name of the variable used to define a specific sample condition (i.e., temperature) when conducting experiments used to derive the experimental data included in the file.
Database field name | Type
SQL Database type | VARCHAR(31)
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
Enumerations | [click for a list of enumerations] This is a closed enumeration. The list of values are the only ones allowed.
Prompt | Variable type
Examples | temperature, pressure, pH
Help text |

### _Sample_condition_variable.Val (Val)

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NMR-STAR tag name | _Sample_condition_variable.Val
Description | NMR-STAR name: _Sample_condition_variable.Val Value for the variable (temperature, pressure, pH) defined in the previous field. Do not include the units in this field. The units for the value are entered in a following field.
Database field name | Val
SQL Database type | VARCHAR(31)
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 | Variable value
Examples | 308
Help text |

### _Sample_condition_variable.Val_err (ValErr)

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NMR-STAR tag name | _Sample_condition_variable.Val_err
Description | NMR-STAR name: _Sample_condition_variable.Val_err Provide the estimated error on the value for the sample condition given in the previous field.
Database field name | ValErr
SQL Database type | VARCHAR(31)
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 | Variable value error
Examples | 0.2
Help text |

### _Sample_condition_variable.Val_units (ValUnits)

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NMR-STAR tag name | _Sample_condition_variable.Val_units
Description | NMR-STAR name: _Sample_condition_variable.Val_units Provide the units for the value of the sample condition (temperature, pressure, pH, ect.) given in the previous field.
Database field name | ValUnits
SQL Database type | VARCHAR(31)
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
Enumerations | [click for a list of enumerations] This is an open enumeration. The list of values are only suggestions. They are not enforced.
Prompt | Variable value units
Examples | K
Help text |

### _Sample_condition_variable.Sf_ID (SfID)

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NMR-STAR tag name | _Sample_condition_variable.Sf_ID
Description | NMR-STAR name: _Sample_condition_variable.Sf_ID Pointer to '_Sample_condition_list.Sf_ID'
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | Sample_condition_list, 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 |

### _Sample_condition_variable.Entry_ID (EntryID)

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NMR-STAR tag name | _Sample_condition_variable.Entry_ID
Description | NMR-STAR name: _Sample_condition_variable.Entry_ID Pointer to '_Entry.ID'
Database field name | EntryID
SQL Database type | CHAR(12)
Part of primary Key | no
Foreign Key on table, column | Sample_condition_list, 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 |

### _Sample_condition_variable.Sample_condition_list_ID (SampleConditionListID)

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NMR-STAR tag name | _Sample_condition_variable.Sample_condition_list_ID
Description | NMR-STAR name: _Sample_condition_variable.Sample_condition_list_ID Pointer to '_Sample_condition_list.ID'
Database field name | SampleConditionListID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | Sample_condition_list, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Variable sample conditions ID
Examples | ?
Help text |